Add a dedicated tsconfig for npm packaging using ES5

Author: darkriszty

package.json

@@ -74,7 +74,7 @@
   },
   "scripts": {
     "vscode:prepublish": "tsc -p ./",
-    "dist": "rm -r ./out; tsc -p ./ --lib 'ES5' --target 'ES5' --sourceMap false --downlevelIteration true && npx gulp merge-packagejson-for-npm-dist && cp README.md out && cp LICENSE out && cd out && npm pack",
+    "dist": "rm -r ./out; tsc -p ./tsconfig.dist.json && npx gulp merge-packagejson-for-npm-dist && cp README.md out && cp LICENSE out && cd out && npm pack",
     "compile": "tsc -p ./",
     "pretest": "npm run compile",
     "test": "npx gulp copy-systemTest-resources && node ./out/test/index.js",

tsconfig.dist.json

@@ -0,0 +1,20 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "ES5",
+        "outDir": "out",
+        "lib": [ "ES5" ],
+        "sourceMap": false,
+        "rootDir": ".",
+        "downlevelIteration": true
+    },
+    "include": [
+        "src/**/*",
+        "cli/**/*"
+    ],
+    "exclude": [ 
+        "node_modules", 
+        ".vscode-test",
+        "test/**/*"
+    ]
+}