added more api documentation

new build process

postinstall.sh

@@ -0,0 +1,14 @@
+install_package() {
+    echo "Installing package '$1' via pip3"
+    pip3 install "$1"
+    if [ $? -eq 0 ]; then
+       echo "Successfully installed pip3 package '$1'"
+    else
+       echo "Could not install pip3 package '$1'"
+       exit 1
+    fi
+}
+
+install_package "smbus"
+install_package "requests"
+install_package "python-logstash-async"