* RHEL version checker

* use arch binary instead uname

* modify install script to support RHEL

* add support for RPM based distro

* add RPM repositories

* choose libdir depending on architecture

* common files for both debian and rhel

As @jaapmarcus raised concern to have common config files for both debian and rhel in github comment.

https://github.com/hestiacp/hestiacp/pull/2731#pullrequestreview-1030683914



This is initial commit to have a common base config files for both debian and rhel.

* Disable bats testing for branch

* architecture dependent result dir

* quota & linting for RHEL

* HestiaCP repo

* RHEL support in installer

Co-authored-by: Jaap Marcus <9754650+jaapmarcus@users.noreply.github.com>