refactor: refactor install chain

Includes:

* refactor of install.sh, splitting it to libs
* fix of custompios module according to install changes
* added test script to verify install
* refactor of `make config` script

    Signed-off-by: Stephan Wendel <me@stephanwe.de>

Signed-off-by: Stephan Wendel <me@stephanwe.de>

tools/libs/pkglist-rpi.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+#### crowsnest - A webcam Service for multiple Cams and Stream Services.
+####
+#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
+#### Copyright 2021 - till today
+#### https://github.com/mainsail-crew/crowsnest
+####
+#### This File is distributed under GPLv3
+####
+
+# shellcheck enable=require-variable-braces
+
+# Exit on errors
+set -Ee
+
+# Debug
+# set -x
+
+### Crowsnest Dependencies
+PKGLIST="git crudini bsdutils findutils v4l-utils curl"
+### Ustreamer Dependencies
+PKGLIST="${PKGLIST} build-essential libevent-dev libjpeg-dev libbsd-dev"
+### Camera-Streamer Dependencies
+PKGLIST="${PKGLIST} cmake libavformat-dev libavutil-dev libavcodec-dev libcamera-dev"
+PKGLIST="${PKGLIST} liblivemedia-dev pkg-config xxd build-essential cmake libssl-dev"