Script made available here, by me allows the files to be added to GAC (Global Assembly Cache) in a remote machine, using poweshell (This script was created on a great sample script available in this article, which explaines how to copy files using PowerShell remoting). Script can run on Server A and It can copy required assemblies from Server A, to Server B and then add to GAC in Server B. This can be used in a standalone installer script created with poweshell and can be utilized in Release Management.
In order to run the script first you need to enable powershell remoting in Server B (target remote server). To do that run in Server B.
Max size issue
When running the script you could run in to max file size default limit per file if your assembly is larger than 10MB.
WARNING: Command failed. Sending data to a remote command failed with the following error message: The current deserialized object size of the data received from remote client exceeded allowed maximum object size. The current deserialized object size is 1057
2800. Allowed maximum object size is 10485760. For more information, see the about_Remote_Troubleshooting Help topic.
As explained in this stackoverflow Q&A, run below script in remote target server (Server B), to enable larger files.
Set-PSSessionConfiguration -Name AsmNoLimits ` -MaximumReceivedDataSizePerCommandMB 500 -MaximumReceivedObjectSizeMB 500
Adding to GAC
Once executed in Server A, file copied from Server A to B and getting added to GAC in Server B.