Fixed the ts library and add rollup config for build

Fixed log tests and updated config

tests/log.test.ts

@@ -1,20 +1,20 @@
-import Index from '../src/Log';
+import Log from '../src/log'
 
 describe('logging into console', function () {
     it('info', function () {
-        Index.info('I am an info!');
+        Log.info('I am an info!');
     });
 
     it('warn', function () {
-        Index.info('I am a warn!');
+        Log.info('I am a warn!');
     });
 
     it('error', function () {
-        Index.info('I am an error!');
+        Log.info('I am an error!');
     });
 
     it('loggable', function () {
-        Index.log({
+        Log.log({
             type: 'info',
             from: 'log.test.ts',
             data: 'I am loggable called'