Packnet

* **[~]** Adjusted (spelling) mistakes in README.md file
* **[~]** Minor readability improvements in `frame.py`
* **[~]** Added recursion to fix bug in `decompress` function in `dtNAME`
* **[~]** Small improvements to `DNS`
* **[~]** Added exception handler to `getmac` function in `general`

* **[+]** Added/Updated documentation
* **[~]** Bug causing permission issues in `general` fixed
* **[~]** The `maclookup` function in `general` now returns `None` when no result has been found
* **[~]** Improved debug info for `debug` method in `frame`
* **[~]** Improved usage of `ADDR` and `LEN` custom datatypes
* **[~]** Adjusted usage of `ICMPv6` and `IPv6` to work with improved `IP` datatype
* **[~]** Fixed mistake regarding `randint` in `ICMP.Echo`
* **[~]** Updated usage of ipv6 in `DNS`

*This update was focused on internal code improvements*

* **[+]** Added `datatype` classes
* INT
* IP
* NAME
* MAC
* CHECKSUM
* ADDR
* LEN
* **[x]** Removed `encode`, `decode` and `checksum` functions from `standards`
* **[~]** Changed `standards` into `general`
* **[~]** Numerous small fixes
* **[+]** Added `Frame` class for improved code
* **[+]** Added automated compression for `name` in `DNS`
* **[x]** Removed MQTT protocol class
* **[x]** Removed RAW class
* **[~]** **Made big internal code improvements for each file**

* **[~]** Improved `build` functions by replacing lists with dictionaries

* **[~]** Moved `Tree` from `Packager` to separate module
* **[~]** Changed `Packager` to make use of `Tree` module
* **[~]** Fixed `tobyte` function from `standards` module

* **[+]** Added `Redirect` class to `ICMP` module
* **[~]** Small improvements for `interface` module
* **[~]** Improved `packager` module