implement cdist install

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
add install types

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
dont add help to 2 parsers

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
config already inherits from loglevel parser

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>