Conlanging layer

Description
This layer adds support for conlanging.
Features
- Generate graphviz trees based on Elisp trees
- Replace some text by its runic equivalent (supports the Mattér and Eittlandic languages)
- Adds phonetics to Ňyqy text
- Provides custom shortcuts
Graphviz trees
The    conlanging   layer    provides    one    public   function    called
   conlanging/tree-to-dot. It accepts as its sole argument a list of strings
   or lists, such as the following:
  (setq-local vowels
    '("[vowel]"
      ("[back]"
       ("[tense]"
        ("[high]" ("ü"))
        ("{high}" ("ö")))
       ("{tense}"
        ("[high]" ("u"))
        ("{high}" ("o"))))
      ("{back}"
       ("[tense]"
        ("[high]" ("y"))
        ("{high}" ("ë")))
       ("{tense}"
        ("[high]" ("i"))
        ("{high}" ("e"))))))When passed in the above mentioned function, and the result itself is passed through graphviz, we get the following result:

This example tree is only a binary tree, but a single node can have up to ten children.
Install
To install this layer, either clone this project in your ~/.emacs.d/private/
  folder, or  symlink it  from there  to your actual  clone location.  Then, add
  conlanging       in      your       dotspacemacs      file       in      the
  dotspacemacs-configuration-layers list:
  (setq-default dotspacemacs-configuration-layers '(conlanging))
  You can then reload your configuration file with SPC f e R, or restart Emacs
  with SPC q r or SPC q R.
Key bindings
| Key Binding | Description | 
|---|---|
| SPC l e l | (org-mode only) Translate Einnlandish transliteration into native latin | 
| SPC l e r | (org-mode only) Translate Einnlandish transliteration into runes | 
| SPC l m L | (org-mode only) Translate Mattér transliteration into LaTeX runes | 
| SPC l m l | (org-mode only) Translate Mattér transliteration into native latin | 
| SPC l m r | (org-mode only) Translate Mattér transliteration into runes | 
| SPC o l e o | Open Eittlandic file | 
| SPC o l h o | Open Hjelp file | 
| SPC o l m o | Open Mattér file | 
| SPC o l n o | Open Ňyqy file | 
| SPC o l o | Open the conlanging directory | 
| SPC o l t o | Open Tãso file |