Update list of tags and move to enum (#87)

* Update RSCP tags and move to enum
* Add script to automatically generate RscpTag Enum
* RscpType, RscpError, PowermeterType as Enum

Author: eikowagenknecht

README.md

@@ -12,12 +12,14 @@ Python API for querying an [E3/DC](https://e3dc.de/) systems
 This is supported either directly via RSCP connection or through the manufacturer's portal. The RSCP implementation has currently the most capabilities.
 
 In order to use it you need:
+
 - Your user name
 - Your password
 - The IP address of the E3/DC system
 - The RSCP Password (encryption key), as set on the device under Main Page -> Personalize -> User profile -> RSCP password
 
 Alternatively, for a web connection, you need:
+
 - Your user name
 - Your password
 - The serial number of the system, which can be found when logging into the E3/DC webpage.
@@ -37,7 +39,7 @@ This library assumes, that there is one inverter installed and the root power me
 
 For any other configurations, there is an optional `configuration` object that can be used to alter the defaults:
 
-```
+```python
 {
   "pvis": [
     {
@@ -86,6 +88,7 @@ print(e3dc.get_pvi_data())
 ### poll() return values
 
 Poll returns a dictionary like the following:
+
 ```python
 {
     'autarky': 100,
@@ -107,23 +110,23 @@ Poll returns a dictionary like the following:
 
 ### Available methods
 
-* `poll()`
-* `get_system_info()`
-* `get_system_status()`
-* `poll_switches()`
-* `get_idle_periods()`
-* `set_idle_periods()`
-* `get_db_data()`
-* `get_battery_data()`
-* `get_batteries_data()`
-* `get_pvi_data()`
-* `get_pvis_data()`
-* `get_powermeter_data()`
-* `get_powermeters_data()`
-* `get_power_settings()`
-* `set_power_limits()`
-* `set_powersave()`
-* `set_weather_regulated_charge()`
+- `poll()`
+- `get_system_info()`
+- `get_system_status()`
+- `poll_switches()`
+- `get_idle_periods()`
+- `set_idle_periods()`
+- `get_db_data()`
+- `get_battery_data()`
+- `get_batteries_data()`
+- `get_pvi_data()`
+- `get_pvis_data()`
+- `get_powermeter_data()`
+- `get_powermeters_data()`
+- `get_power_settings()`
+- `set_power_limits()`
+- `set_powersave()`
+- `set_weather_regulated_charge()`
 
 See the full documentation on [ReadTheDocs](https://python-e3dc.readthedocs.io/en/latest/)
 
@@ -162,13 +165,14 @@ One limitation of the package concerns the implemented RSCP methods. This projec
 
 ## Projects using this library
 
-* [e3dc-rest](https://github.com/vchrisb/e3dc-rest): a simple REST API to access an E3/DC system
-* [e3dc-to-mqtt](https://github.com/mdhom/e3dc-to-mqtt): publish E3/DC data via MQTT
-* [weewx-photovoltaics](https://github.com/roe-dl/weewx-photovoltaics): Extension to WeeWX for processing data of the photovoltaics system E3/DC
+- [e3dc-rest](https://github.com/vchrisb/e3dc-rest): a simple REST API to access an E3/DC system
+- [e3dc-to-mqtt](https://github.com/mdhom/e3dc-to-mqtt): publish E3/DC data via MQTT
+- [weewx-photovoltaics](https://github.com/roe-dl/weewx-photovoltaics): Extension to WeeWX for processing data of the photovoltaics system E3/DC
 
 ## Contribution
 
-* open an issue before making a pull request
-* note the E3/DC system you tested with and implementation details
-* pull request checks will enforce code styling (black, flake8, isort)
-* consider adding yourself to `AUTHORS`
+- Open an issue before making a pull request
+- Note the E3/DC system you tested with and implementation details
+- Pull request checks will enforce code styling (black, flake8, flake8-docstrings, isort)
+- Make sure to support Python versions >= 3.7
+- Consider adding yourself to `AUTHORS`