Support Git Bash for Windows

[tgruenert]

At first - this plugin could really be a helpful tool at developing deployments. Great idea!
For me at now it is limited to view files. Downloading via kubectl cp do not work at the moment.

$ kubectl cp default/jmeter-c64c9798b-87jx5:/root/result/n2.jmx n2.jmx -c jmeter
Error from server (NotFound): pods "default\\jmeter-c64c9798b-87jx5;C" not found

It might be an small change at path separator substitution. But unfortunately i can´t do it by myself.

[tgruenert]

after playing around i recognized:

the namespace prefix lets fail the command.

$ kubectl cp default/jmeter-c64c9798b-87jx5:/root/result/n2.jmx n2.jmx 
Error from server (NotFound): pods "default\\jmeter-c64c9798b-87jx5;C" not found

fails but

$ kubectl cp jmeter-c64c9798b-87jx5:/root/result/n2.jmx -n default n2.jmx
tar: removing leading '/' from member names

works