[keycloak-dev] new deployer in master

Ok, New provider deployer exists in master. You can package components in any type of deployment. i.e. within a EAR or WAR. Hot deploy works as well. The deployers/ directory and deployment-scanner subsystem is now back in the server. Also added JTA transactions. So, now when a KeycloakSession is created a new JTA transaction is associated with the KeycloakTransactionManager. If there was an existing JTA transactionn, that transaction is suspended and resumed after the keycloak session completes. JTA TransactionManager lookup has an SPI now which you can enable/disable in keycloaks-server.json. If no transaciton manager exists i.e. within the testsuite, JTA is not used at all. I'll be documenting all this eventually. Still have some work to do on the new user federation spi before that though. Bill