update pom.xml template for error-prone

[stevehu]

To ensure that generated code can be compiled in jdk8, 9, 10, 11, etc.

[stevehu]

And also create both release and debug profiles to speed up the development process for developers.

For normal testing,

mvn clean install exec:exec

For release build

mvn clean install -P release

[stevehu]

update pom.xml template for error-prone