Provide a Tamaya integration module for OSGI ConfigAdmin

Provide a functionality to extend/override/adapt any ConfigAdmin configuration as follows:

• add new config entries
• update (override) existing entries
• remove entries (full synch)

Hereby the dynamics of OSGI must be considered:

• Removing Tamaya must recover the previous state.
• It must be possible to enable/disable Tamaya Configuration by default on bundles by Tamaya bundle config or system properties.
• It must be possible to selectively enable bundles for Tamaya configuration using Manifest entries.
• It must be possible to selectively control the override (op) mode for bundles using Manifest entries.