Removal of the modulated-development branch

[vaitkus]

Development of the modulated structure dictionary (cif_ms.dic) was moved to a separate repository [1], however, the 'modulated-development' branch [2] of this repository still contains some unmerged changes relating to the aforementioned dictionary. Relevant changes should be cherry-picked and merged. Note, that the templ_attr.cif file that still belongs to this repository was also slightly changed.

A similar issue was also raised in the CIF_MS repository (COMCIFS/Modulated_Structures/issues/2).

[1] https://github.com/COMCIFS/Modulated_Structures
[2] https://github.com/COMCIFS/cif_core/tree/modulated-development

[vaitkus]

Changes from that branch are now available in two different PRs:

• templ_attr.cif: PR Add changes from the 'modulated-development' branch. #455.
• cif_ms.dic: PR Add changes from the 'modulated-development' branch (CIF_CORE) Modulated_Structures#3

[vaitkus]

Changes made to the MS_DIC have been successfully merged with PR COMCIFS/Modulated_Structures#3.

[vaitkus]

As all of the features from the modulated-development branch have been merged, the branch can most likely be removed.