DPMS-11800 Change gradlew file permission to 755 (Part5) (oxeanbits#19)

* Add auxiliar anvil components to do renderization

* Remove redundant core folder inside of core module

* Add group and application name for publishing

* Add configuration for publishing sources, javadoc and aar file

* Update lib of anvil to anvil-sdk21

* Add missing properties to extra in gradle

* Change permission use of gradlew to 755