Add CHANGELOG and README

Signed-off-by: NexAdn <nex@nexadn.de>

CHANGELOG.md

+# Changelog
+## Version 1.0.0
+### Additions
+  * Initial `aruba.py` script
+    * Add Aruba APs
+  * Initial `hausaufgang.py` script
+    * Create Hausaufgang objects
+  * Initial `patch.py` script
+    * Create equivalent Rear Port bulk patches
+    * Create free bulk patches
+  * Initial `switch.py` script
+    * Create switches with modularized interfaces

README.md

+# Netbox extension scripts
+
+This repository contains the custom scripts which are integrated in the frontend of FeM's NetBox.
+
+## Available scripts
+### aruba.py
+
+`aruba.py` provides utilities for working with the Aruba WiFi system.
+
+Sub-scripts:
+  * `AddArubaAp` – add new Aruba access points and set the device's parameters
+    * enforces correct AP naming scheme
+    * auto-connects rear-facing uplink ports with the accompanying passthrough port if needed (currently only for AP-205H)
+    * configures VLAN and IP-address on the uplink interface
+
+### hausaufgang.py
+
+`hausaufgang.py` provides utilities for working with FeM's representation of the wall sockets in the dorms, called “Hausaufang”.
+
+Sub-scripts:
+  * `AddHausaufgang` – add a new Hausaufgang with the given set of ports
+    * ensures every Hausaufgang belongs to a site
+    * enforces corret naming scheme
+    * creates the corresponding device with Role “Hausaufgang”
+    * creates the Rear Ports and Front Ports which represent the wall sockets
+  * `ConnectUserports` – unused script which is left there because NetBox complains if it is deleted
+    * do not use this!
+
+### patch.py
+
+`patch.py` provides bulk patching utilities.
+
+Sub-scripts:
+  * `BulkPatch` – Generic bulk patching script
+    * Patch Interfaces, Front Ports and Rear Ports to other Interfaces, Front Ports and Rear Ports
+  * `EquivPatch` – Equivalent Rear Port Bulk Patch
+    * Creates equivalent patches between two Patchpanels' Rear Ports (i.e. Rear 1 connects to Rear 1, Rear 2 connects to Rear 2, etc.)
+
+### switch.py
+
+`switch.py` provides utilities for documenting switches
+
+Sub-scripts:
+  * `AddSwitch` – Add and configure Aruba/HP switches with modularized interfaces
+    * creates the switch and adds interfaces according to the provided number of modules
+    * allows selecting which interfaces are SFP+ instead of 8P8C
+    * depending on the module, manual adjustments are necessary afterwards (some modules have only 22 instead of 24 interfaces)