Main: Added inital support for Debian 11

Added Debian 11 as supported os
Added deb11 to all places were deb10 was in a if statement

Temporarily replaced MySQL with MariaDB,
since the MySQL repo is not yet avalible

Scripts/MicroOSDetect.sh

@@ -7,6 +7,8 @@ if [[ "${dist}" == *"ubuntu"* ]] && [[ "${dist_ver}" == *"18.04"* ]]; then
     shortdist=ubu2004 
 elif [[ "${dist}" == *"debian"* ]] && [[ "${dist_ver}" == *"10"* ]]; then
     shortdist=deb10
+elif [[ "${dist}" == *"debian"* ]] && [[ "${dist_ver}" == *"11"* ]]; then
+    shortdist=deb11    
 elif [[ "${dist}" == *"centos"* ]] && [[ "${dist_ver}" == *"8"* ]]; then
     shortdist=el8
 else