feature: support enable/disable code formatter.

Author: isshe

package.json

@@ -207,6 +207,11 @@
           "default": true,
           "description": "Keep diagnostic information after document closed."
         },
+        "LuaCoderAssist.format.enable": {
+          "type": "boolean",
+          "default": true,
+          "description": "Enable/Disable code formatter."
+        },
         "LuaCoderAssist.format.lineWidth": {
           "type": "integer",
           "default": 120,

server/coder.js

@@ -29,14 +29,14 @@ class Coder {
         this.settings = {
             enable: true,
             debug: false,
-            preloads:[],
+            preloads: [],
             useLove: false,
             useJit: false,
             symbol: {
                 showAnonymousFunction: true,
                 showFunctionOnly: false,
             },
-            luaPath:"",
+            luaPath: "",
             luacheck: {
                 enable: true,
                 onSave: true,
@@ -60,6 +60,7 @@ class Coder {
                 allowDefined: false
             },
             format: {
+                enable: true,
                 lineWidth: 120,
                 indentCount: 4,
                 quotemark: "single"

server/providers/format-provider.js

@@ -25,6 +25,10 @@ class FormatProvider {
             let uri = params.textDocument.uri;
             let opt = this.coder.settings.format;
 
+            if (!opt.enable) {
+                return [];
+            }
+
             let document = yield this.coder.document(uri);
 
             let text