HA database configuration for CCDB and UAA

[gaktive]

Is your feature request related to a problem? Please describe.
Though we're pushing admins to use an external database with kubecf in production, for a better out-of-box experience, we need to include an internal database so that early adopters can simply get kubecf operational quickly.

Describe the solution you'd like
@troytop can provide more context but perhaps this is simply a case of adding a helm chart to another database. As for which one, I will defer to him.

[gaktive]

@viovanov mentioned that @aduffeck is already looking at MariaDB as an option.

[fargozhu]

will be fixed by #270

[f0rmiga]

@aduffeck I assigned you here based on the comments by @gaktive and @fargozhu.