fix: add some kubernetes res comlpetion descriptions

fix(completion): image name completion end with useless spaces

Closes fenixsoft#1

refactor(Kubernetes): refactoring Kubernetes cmd completion in new arch

feat:

timeout (5s) for environment scanning while initial
cache krew plugin, do not query from index everytime
colorful stdout support

build: inject Version while building

build: setup Travis-CI config

Initial commit

Initial commit