chore(ts): enables source map in the ts (#961)

enables the source maps for the ts compiled files for easy debugging

Author: pranshuchittora

.gitignore

@@ -38,3 +38,6 @@ yarn.lock
 # source maps of docs
 docs/**/*.map
 junit.xml
+
+#typescript source maps
+packages/**/*.map

tsconfig.base.json

@@ -6,7 +6,8 @@
 		"skipLibCheck": true,
 		"target": "es6",
 		"lib": ["es6", "es2017"],
-		"resolveJsonModule": true
+		"resolveJsonModule": true,
+		"sourceMap": true
 	},
 	"include": ["packages/**/*.ts"],
 	"exclude": [