chore: Add .luarc.json to gitignore and add example

The example is missing the `workspace.library` as i haven't found a
proper way to integrate this with the glua-api-snippets [1] yet in my
Neovim setup. In my current setup `workspace.library` points to a local
clone.

VSCode Users should be able to use the `Lua Language Server Addon Manager`
to enable the garrysmod addon (if they have the lua language server
installed).
I haven't tested this, therefore i don't know if the .luarc.json is even
necessary in that case.

This file is mostly set here for reference purposes.

.gitignore

@@ -55,5 +55,6 @@ Temporary Items
 todo.txt
 addon.json
 *.gma
+.luarc.json
 
 ttt2.jpg

.luarc.json.example

@@ -0,0 +1,34 @@
+{
+	"$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
+	"diagnostics.disable": [
+		"duplicate-set-field",
+		"unused-local",
+		"lowercase-global",
+		"inject-field",
+		"undefined-field",
+		"param-type-mismatch",
+		"cast-local-type"
+	],
+	"diagnostics.globals": [
+		"GM",
+		"BaseClass",
+		"CLGAMEMODEMENU",
+		"CLGAMEMODESUBMENU",
+		"CLSCOREMENU",
+		"EVENT",
+		"TEXFILTER"
+	],
+	"diagnostics.ignoredFiles": "Enable",
+	"format.enable": false,
+	"runtime.special": {
+		"include": "require",
+		"includeCS": "require"
+	},
+	"runtime.version": "Lua 5.1",
+	"runtime.nonstandardSymbol": [
+		"//",
+		"/**/",
+		"continue"
+	],
+	"workspace.checkThirdParty": false
+}