module: add :tools tree-sitter

This module installs 'tree-sitter' and 'tree-sitter-langs' as well as
the 'evil-textobj-treesitter' and configures them.

This module is based on the prototype module that @hlissner has started
and I am just fleshing out that work.

It also comes with a README file

Fix: #4151

modules/tools/tree-sitter/README.org

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+#+TITLE:   tools/tree-sitter
+#+DATE:    August 17, 2021
+#+SINCE:   3.0.0
+#+STARTUP: inlineimages nofold
+
+* Table of Contents :TOC_3:noexport:
+- [[#description][Description]]
+  - [[#maintainers][Maintainers]]
+  - [[#module-flags][Module Flags]]
+  - [[#plugins][Plugins]]
+  - [[#hacks][Hacks]]
+- [[#prerequisites][Prerequisites]]
+- [[#features][Features]]
+- [[#configuration][Configuration]]
+- [[#troubleshooting][Troubleshooting]]
+
+* Description
+Add [[https://tree-sitter.github.io/tree-sitter/][tree-sitter]] support to doom:
+
+#+begin_quote
+Tree sitter is a parser generator tool and an incremental parsing library. It
+can build a concrete syntax tree for a source file and efficiently update the
+syntax tree as the source file is edited.
+#+end_quote
+
+
++ include better syntax highlighting of supported code
++ add structural text objects to manipulate functions statements and other code
+  structures
+
+** Maintainers
+- @jeetelongname
+
+** Module Flags
+This module provides no flags.
+
+** Plugins
++ [[https://github.com/emacs-tree-sitter/elisp-tree-sitter][tree-sitter]]
++ [[https://github.com/emacs-tree-sitter/tree-sitter-langs][tree-sitter-langs]]
++ [[https://github.com/meain/evil-textobj-tree-sitter][evil-textobj-tree-sitter]]* (=:editor evil +everywhere=)
+
+** TODO Hacks
+# A list of internal modifications to included packages; omit if unneeded
+
+* Prerequisites
+This module has no prerequisites.
+
+* TODO Features
+# An in-depth list of features, how to use them, and their dependencies.
+
+* TODO Configuration
+# How to configure this module, including common problems and how to address them.
+
+* TODO Troubleshooting
+# Common issues and their solution, or places to look for help.

modules/tools/tree-sitter/config.el

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+;;; tools/tree-sitter/config.el -*- lexical-binding: t; -*-
+
+(use-package! tree-sitter
+  :when (bound-and-true-p module-file-suffix)
+  :hook (prog-mode . tree-sitter-mode)
+  :hook (tree-sitter-after-on . tree-sitter-hl-mode)
+  :config
+  (require 'tree-sitter-langs)
+  (setq tree-sitter-debug-jump-buttons t
+        tree-sitter-debug-highlight-jump-region t)
+
+  (defadvice! doom-tree-sitter-fail-gracefully-a (orig-fn &rest args)
+    "Don't break with errors when current major mode lacks tree-sitter support."
+    :around #'tree-sitter-mode
+    (condition-case e
+        (apply orig-fn args)
+      (error
+       (unless (string-match-p (concat "^Cannot find shared library\\|"
+                                       "^No language registered\\|"
+                                       "cannot open shared object file")
+                               (error-message-string e))
+         (signal (car e) (cadr e)))))))
+
+(use-package! evil-textobj-tree-sitter
+  :after tree-sitter
+  :config
+  (map!
+   :textobj "f" (evil-textobj-tree-sitter-get-textobj "function.inner") (evil-textobj-tree-sitter-get-textobj "function.outer") ;; redef
+   :textobj "C" (evil-textobj-tree-sitter-get-textobj "class.inner") (evil-textobj-tree-sitter-get-textobj "class.outer")
+   :textobj "c" nil (evil-textobj-tree-sitter-get-textobj "comment.outer")
+   :textobj "i" (evil-textobj-tree-sitter-get-textobj "conditional.inner") (evil-textobj-tree-sitter-get-textobj "conditional.outer")
+   :textobj "l" (evil-textobj-tree-sitter-get-textobj "loop.inner") (evil-textobj-tree-sitter-get-textobj "loop.outer")))

modules/tools/tree-sitter/packages.el

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+;; -*- no-byte-compile: t; -*-
+;;; tools/tree-sitter/packages.el
+
+(package! tree-sitter
+  ;; :ignore (null (bound-and-true-p module-file-suffix))
+  :pin "c7a1c34549cad41a3618c6f17e0e9dabd3e98fe1")
+(package! tree-sitter-langs
+  ;; :ignore (null (bound-and-true-p module-file-suffix))
+  :pin "e7b8db7c4006c04a4bc1fc6865ec31f223843192")
+
+(when (featurep! :editor evil +everywhere)
+  (package! evil-textobj-tree-sitter
+    :pin "f20598676f99e6fa33759d9807e94f42271c0dfb"))

modules/tools/tree-sitter/test.js

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+// this is a test file i am useing to test functionallity with treesitter
+
+// blocks
+x = 10
+
+// calls
+call();
+
+// class
+class Car {
+  constructor(name, year) {
+    this.name = name;
+    this.year = year;
+  }
+  age(x) {
+    return x - this.year;
+  }
+}
+
+// comments
+/*
+ * multiline my dude
+ * a poem
+ * roses are red
+ * violets are blue
+ * there is a man behind you
+ * and he had an axe with him to
+ */
+
+
+// conditional
+if (x == 1) {
+  doStuff();
+} else {
+  x = new Car.age(2020)
+}
+
+
+// function
+function name(arg) {
+  doStuff(arg);
+}
+
+const arrowFunc = arg => {
+  dosStuff(arg);
+}
+
+// loop
+for (let i = 0; i <= 10; i++) {
+  doStuff(i);
+}
+// param