Add support for using a specific branch when performing update using mcservers
Add support for using a specific branch when performing update using mcservers

Updated mcservers so that update command can accept --mc-branch and --mcstore-branch arguments. Change restore args to --mc-restore-branch and --mcstore-restore-branch

materials-commons/materialscommons.org,materials-commons/materialscommons.org,materials-commons/materialscommons.org,materials-commons/materialscommons.org,materials-commons/materialscommons.org