Adding ability to configure password via console using java defines

[marksteele]

Allows to specify username/password to the CLI in a non-interactive way.

Ex:

java 
-Duser.name=foo \
-Duser.password=bar \
-Dl10n.resttemplate.authentication.credentialProvider=CONSOLE \
-jar mojito-cli.jar

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:white_check_mark: marksteele
:x: Mark Steele

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