Added tag provider, edited policy provider.  needed for upgrade to 0.15

IMPORTANT:  Must be merged with
https://github.com/dell-asm/razor-server/pull/50
https://github.com/dell-asm/asm-deployer/pull/683
https://github.com/dell-asm/asm-core/pull/950
https://github.com/dell-asm/asm/pull/203
https://github.com/dell-asm/asm-automation/pull/155