Combine all SLO variants into one main branch

[Zork33]

• Merge the php-version branch into the js-version branch #57
• Merge the js-version branch into the main branch #58
• Change the numbered configurations in the parameters to a list of configurations #76
• Verify that main branch works on NodeJS SDK #78
• Convert the Go SDK to the main branch (PR) #79
• Convert the PHP SDK to the main branch (PR) #75
• Convert the Python SDK to the main branch (PR) #81
• Convert the .Net SDK to the main branch (PR) #80
• Fix NodeJS SLO - test the current SDK from the branch code, not the specific release specified in the dependencies #77
• Check and remove all unnecessary branches (After all SLO change PRes will be accepted) #86