The registry keys necessary to add the shift+right-click context menu to the Windows 10 Explorer context menu similar to the Command Prompt shift+right-click context menu option.
Simply open the add_bash.reg file to add the Bash context menu option. To remove this menu option in the future, open the remove_bash.reg file.
To make the context menu option available on right-click only, simply change the lines with the "Extended" keys to the following:
"Extended"=-