Extended Amazigh layout + Latin Amazigh layout

[abdelhaqueidali]

we have added the extended Amazigh layout with its script tifinagh as well as adding the latin lyout for Amazigh as this script is in use for writing Amazigh.
Notes:

• amazigh_basic.yaml is the standard also referred as the Basic set of letters.
• amazigh_extended.yaml brings all the letters that are supported in the unicode table as they are used when writing in dialects/varients.
• amazigh_latin.yaml is the latin layout for Amazigh as this script is also in use. note that this script only has the main set of letters in latin that corresponds to the Amazigh script basic set which is mostly used in latin amazigh, however we may add extended layout too as it suits writing in dialects.

[abdelhaqueidali]

Amazigh has the standard layouts which is the basic layout, and an extended layout that has additional letters which are not in the standard alphabet. These letters are used by some for writing a dialect in a phonetically way, as it gives additional letters that points the accent of the letter. Ex. ⴽ and ⴿ are k and ḵ accordingly.
Amazigh in Latin version doesn't have this extended form in use a lot. maybe it is possible to add it too another time.