* Support EagerTensor init with kwargs

* Updated comments

* Updated unit tests case

* Refactor InitTensor related code to reduce duplicate code

* Updated the error reporting msg

* Updated VLOG msg

* Merge develop and Update EagerTensor init func

* Polish switch case, reduce some code

* Add SyntaxError unit test case

* Refactor the related initialization func of EagerTensor

* Remove ParseStopGradient and ParseZeroCopy and ParsePersistable, construct ParseBooleanArgs instead.

* Updated error msg to pass CI

* Updated PADDLE_ENFORCE error type