Add ability to view and copy commit details from History view

[Mingun]

Is your feature request related to a problem? Please describe. When you look a File History, the list of commits, affecting file, contains very limited information:

• there is no tooltips with full commit message
• showed message part is too short. In a project at which I work each commit contains a some metadata information in the beginning, such as JIRA name and a software component. Practically only that information is displayed which is not much useful in that context
• there is no ability to copy commit details, at leash sha-1
• there is no ability to view commit details

Describe the solution you'd like

• Add context menu for commit with ability to copy commit details. I think, the menu similar to TortoiseGit would be appropriate
• Add ability to open window with commit details that will show commit message, list of changed files and parent commit(s)

Also, the following usability improvements would be desirable:

• Highlight currently selected commit in the list. Right now the commit viewed does not indicated at all
• Add visual indicator that after selecting commit GitNuro processing command. Right now after click I wait around 2 seconds (I have a BIG repository) and after that the diff is loaded. There is no indication that GitNuro accepts command and executing it

Describe alternatives you've considered None