FORGE-1501 Execute scaffold plugin setup during generation.

THis ensures that if the scaffold setup command was not run
previously, then it is effectively run during scaffold generation.
Improved the Faces scaffold provider setup detection logic.

This now verifies whether all the required files and configuration
options have been setup correctly in the project.
Added tests to verify scaffold generate behavior.

This uses the UI Test Harness to ensure that the wizard execution logic behind the scaffold generate command is verified, ensuring that scaffold setup is also executed if the provider was not already setup.
FORGE-1822 Modified ScaffoldProvider SPI for Project encapsulation.

The ScaffoldSetupContext and ScaffoldGenerationContext classes now
supply the selected Project to the ScaffoldProvider instance. The
method level Project arguments have been removed.
FORGE-1825 Revoke overwrite flag from scaffold commands.

The scaffold setup and generate commands no longer accept an
overwrite flag. Existing resources are always overwritten since
the commands have no control over deciding whether to overwrite
individual files.
FORGE-1750, FORGE-1749: Create command to generate getters and setters
Improved tests to verify scaffold setup alongside generation.
Extracted RESTWizard to javaee-api from javaee-impl.

This allows addons to stop depending on javaee-impl for this class.
Moved RestGenerationContext to javaee-api.

This is done to allow other addons to consume the
RestResourceGenerator API.
Extracted names of RestResourceGenerator as constants in javaee-api.
Extracted JPAFIeldOperations into an interface.
FORGE-1831: javaee addon now depends on JavaEE7 spec classes
FORGE-1826: Custom Exception types have String in the public constructors
FORGE-1826: Added back public constructors with default message
FORGE-1826: Fixed compilation errors
Revert "Fixing test JavaParserResourcesTest after the maven-optional cleanup"

This reverts commit 7f76c845525fce389cd20597b2df21516d41792f.
<optional>false</optional> is no longer being written to pom.xml
Required attributes first
Fixed test name
Merge pull request #453 from mbriskar/FORGE-1750

FORGE-1750, FORGE-1749: Create command to generate getters and setters f...