Add Solidity

Add basic Solidity module

modules/lang/solidity/config.el

@@ -0,0 +1,28 @@
+;;; lang/solidity/config.el -*- lexical-binding: t; -*-
+
+;;
+;; Plugins
+;;
+
+(def-package! solidity-mode
+  :mode "\\.sol$"
+  :init
+    (setq solidity-solc-path "$HOME/.node_modules/bin/solcjs")
+    (setq solidity-solium-path "$HOME/.node_modules/bin/solium")
+
+    (setq solidity-flycheck-solc-checker-active t)
+    (setq solidity-flycheck-solium-checker-active t)
+
+    (setq flycheck-solidity-solc-addstd-contracts t)
+  :config
+    (setq solidity-comment-style 'slash))
+
+(def-package! company-solidity
+  :when (featurep! :completion company)
+  :after solidity-mode
+  :config
+  (add-hook 'solidity-mode-hook
+    (lambda ()
+    (set (make-local-variable 'company-backends)
+        (append '((company-solidity company-capf company-dabbrev-code))
+        company-backends)))))