Xxh-xxh

**xxh**
* Fix `+hhr` argument

**zsh and bash-zero entrypoints**
* Added `-C` (big C) argument to get base64 encoded command

**xxh.zsh**
* Seamless mode for xonsh: `source xxh.xsh myhost`

**zsh-portable**
* New zsh portable build on alpine with musl

**all entrypoints**
* Verbose mode

**xxh**, **xxhp**
* Build script could be written on xsh, zsh, fish, sh

**xxh-dev**
* Big improvement: users for every shell

**xxh**
* Fix xxh shell download logic

**xxhp**
* Added quiet mode

**xxh-shell-zsh**
* Suppress minor warnings

**xxh**
New name for pip package: `xxh-xxh`. The command to install or upgrade:

python3 -m pip install --upgrade xxh-xxh


**xxhp**
Now you can list packages:

xxhp ri xxh-shell-xonsh-appimage xxh-plugin-xonsh-bar

**xxh**
* Fix `source xxh.zsh myhost` magic command

**xxh-shell-zsh**
* Set zcompdump path
* Suppress minor warnings