hotfix for mac-detection and various variable names (#139)

* Change Client-Name: The client name inside LVA is not capable of having spaces in the name. Fixed the example.
* Add first version of Docker-Compose for developers
* Add variable for network-interface and auto detection by default
* Added autodetection for the MAC-Address based on the detected or specified network-interface.
* Switched from listening on all IP-Addresses to the IP of the default interface, usually u set the correct network-interface and it will automatically detect the right IP-Address.
* Added missing variables, fixed variables names
* Fixed not working variables for example sound-files.
* Moved the auto-name creation from shell to python. The name is no longer mandatory, it will be generated if no name is given.

.env.example

@@ -14,8 +14,7 @@ LVA_USER_ID="1000"
 LVA_USER_GROUP="1000"
 
 ### Name for the client (optional):
-# by default it uses the HOSTNAME variable from the piCompose environment which includes the MAC from the network card
-# CLIENT_NAME="My Voice Assistant Speaker"
+# CLIENT_NAME="speaker_livvingroom"
 
 ### PulseAudio socket path on the host:
 # PulseAudio Server:    /run/user/1000/pulse
@@ -26,6 +25,12 @@ LVA_XDG_RUNTIME_DIR="/run/user/${LVA_USER_ID}"
 ### Path to the preferences file (optional):
 # PREFERENCES_FILE="/app/configuration/preferences.json"
 
+### Network interface (optional):
+# NETWORK_INTERFACE="eth0"
+
+### IP-Address for the api (optional):
+# HOST="0.0.0.0"
+
 ### Port for the api (optional):
 # PORT="6053"
 
@@ -39,7 +44,10 @@ LVA_XDG_RUNTIME_DIR="/run/user/${LVA_USER_ID}"
 # ENABLE_THINKING_SOUND="1"
 
 # Wake model (optional):
-# WAKE-MODEL="okay_nabu"
+# WAKE_MODEL="okay_nabu"
+
+# Stop model (optional):
+# STOP_MODEL="stop"
 
 # Refactory seconds (optional):
 # REFACTORY_SECONDS="2"