added syntax highlight file (TodePond#145)

* added syntax highlight file

* polish syntax highlighting wording

* streamline wording

---------

Co-authored-by: Lu[ke] Wilson <[email protected]>

Author: Odinmylord

.vscode/settings.json

@@ -0,0 +1,49 @@
+{
+  "highlight.regexFlags": "gi",
+  "highlight.regexes": {
+    "(?= *[functio])( )*(f?u?n?c?t?i?o?n?)+( *)([^()\n ]+)( *\\()(.*?)(\\) +=>)": {
+      "decorations": [
+        {}, //indentation
+        {
+          "color": "#ffff46" //function keyword
+        },
+        {},
+        {
+          "color": "#46ccff" //function name
+        },
+        {},
+        {
+          "color": "#8043f7" //function params
+        },
+        {}
+      ]
+    },
+    "const (const|var) +(var|(?!\\1)const)": {
+      "decorations": [
+        {
+          "backgroundColor": "#ff4346", // this is to highlight an invalid usage of const const const
+          "color": "#1f1f1f"
+        },
+        {}
+      ]
+    },
+    "(const|var)( +)(const|var)( +)([^ +\\-\\*\\/<>=\\(\\)\\[\\]!;:\\.{}\n]+)(([^ ]+?))?( *)([+\\-\\/*]?)(= *)([^!\n?]+)": {
+      "decorations": [
+        {
+          "color": "#46ff80" // first const
+        },
+        {},
+        {
+          "color": "#4680ff" // second const
+        },
+        {},
+        {
+          "color": "#ff8046" // variable name
+        },
+        {
+          "color": "#ff80de" //lifetime
+        }
+      ]
+    }
+  }
+}