v0.1.0

First release of gctx binary with support for basic gcloud configuration commands:

gcloud configuration manager

USAGE:
    gctx.exe [context] [SUBCOMMAND]

ARGS:
    <context>    Switch to this context (shorthand for activate, ignores subsequent arguments)

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

SUBCOMMANDS:
    activate    Activate a configuration by name
    copy        Copy a configuration
    create      Create a new configuration
    current     Show the current configuration
    describe    Describe all the properties in a configuration
    help        Prints this message or the help of the given subcommand(s)
    list        List all available configurations
    rename      Rename a configuration