sdkgen: logging: coloured output and indication of completion

Change-Id: Iba754e9c277bdcabab992f31905af964836059c4
Signed-off-by: Arnav Gupta <championswimmer@aokp.co>
Support for JCROM
Merge branch 'kitkat-jcrom' of github.com:JCROM-Android/aokp_build into kitkat-jcrom