Prepare the move of smartmontools from SourceForge svn to GitHub

Create svn tag 'PRE_MOVE_TO_GIT' from svn 'trunk'.
Retire the git 'master' branch.
The git HEAD will be switched to a new independent 'main' branch.


git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/PRE_MOVE_TO_GIT@5716 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 7.5 RELEASE_7_5

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_7_5@5714 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 7.4 RELEASE_7_4

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_7_4@5530 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 7.3 RELEASE_7_3

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_7_3@5338 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 7.2 RELEASE_7_2

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_7_2@5155 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 7.1 RELEASE_7_1

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_7_1@5022 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 7.0 RELEASE_7_0

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_7_0@4883 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 6.6 RELEASE_6_6

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_6_6@4594 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 6.5 RELEASE_6_5

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_6_5@4318 4ea69e1a-61f1-4043-bf83-b5c94c648137

Release 6.4 RELEASE_6_4

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/tags/RELEASE_6_4@4109 4ea69e1a-61f1-4043-bf83-b5c94c648137