DDTTYLogger: By default apply setForegroundColor:backgroundColor:forFlag: to LOG_CONTEXT_ALL

Until now this method applied to only the default context `(0)`.

Follows #146.
Merge pull request #154 from rivera-ernesto/ttylogger_applytoallcontexts

DDTTYLogger: By default apply setForegroundColor:backgroundColor:forFlag: to LOG_CONTEXT_ALL