Remove size from resource pools in template

[#75453690]
Revert "Remove size from resource pools in template"

This reverts commit e3f606530356da253203f81e3c5515896866214b.

- Reverting to revisit the implementation so old bosh directors
are still supported
Add timestamps to galera and gra-log-purger ctrl logs.

[#76091850]
Plan displayName can be defined at top-level or as part of the metadata hash
Moved mariadb_ctrl into a submodule. Updated packaging script so it works with the new path.

[#76158688]
Add note about non-support of myisam tables to readme

[finishes #76630708]