Add initial Personal Carbon Allowance Dataset

[al-fisher]

An initial prototype of this idea was produced during the Climate Emergency Strike on the 20th of September 2019.
The idea was to (in the first instance) capture individuals' limits on carbon consumption to aid decision making.
With these limits varying (and tampering down) yearly.

The key outstanding action here will be to document source and assumptions fully.
This is indeed non trivial as will vary based on regional and legislative assumptions so good fully documented BH.oM.Data.Library.Source is need

Todo:

• document source and clear reference and assumptions for the dataset

[al-fisher]

Closing the WIP PR on this issue - as the most important part of the issue, the BH.oM.Data.Library.Source, needed to be addressed. See updated comments above.
Good to agree strategy here.
@TrevorKeeling @LivAndersson FYI

[al-fisher]

Original prototype data produced for the Climate Emergency Strike Hack, reproduced below for the record.

{ "Name" : "2017", "PCA" :  8798 , "BHoM_Guid" : "4ac42f4e-5d1b-4df6-90f3-a0efbb0e8fe9" }
{ "Name" : "2018", "PCA" :  8567 , "BHoM_Guid" : "eb87f92d-7da2-48f3-adf5-4b6e85296ba6" }
{ "Name" : "2019", "PCA" :  8335 , "BHoM_Guid" : "ce296b87-5fc7-4e3c-9acf-474a17959a53" }
{ "Name" : "2020", "PCA" :  8104 , "BHoM_Guid" : "cd23cc58-72a9-409c-8809-1db7badf5f6d" }
{ "Name" : "2021", "PCA" :  7872 , "BHoM_Guid" : "a927666f-dfa8-40f4-aa8a-c11b44a528a9" }
{ "Name" : "2022", "PCA" :  7641 , "BHoM_Guid" : "75b81a7e-3a10-4d3b-beed-50ae7793ff9e" }
{ "Name" : "2023", "PCA" :  7409 , "BHoM_Guid" : "adbe8901-3460-44eb-ae9a-ba208903b671" }
{ "Name" : "2024", "PCA" :  7178 , "BHoM_Guid" : "32c54f52-e0de-4cc0-ade1-158955140f6e" }
{ "Name" : "2025", "PCA" :  6946 , "BHoM_Guid" : "b2c1e3a5-8c97-4dad-ad65-c77622c51b63" }
{ "Name" : "2026", "PCA" :  6715 , "BHoM_Guid" : "02f799b9-913f-404e-a7c5-32b3b89dd60d" }
{ "Name" : "2027", "PCA" :  6483 , "BHoM_Guid" : "bb8c0a0d-c002-4a2a-a458-3259f2f93c84" }
{ "Name" : "2028", "PCA" :  6252 , "BHoM_Guid" : "fa6571f5-f5e8-4b60-b29b-77d0a07d3af0" }
{ "Name" : "2029", "PCA" :  6021 , "BHoM_Guid" : "615fe733-fd8c-43e3-8158-a6958445b097" }
{ "Name" : "2030", "PCA" :  5789 , "BHoM_Guid" : "e5e8480a-9292-4102-80be-0dc1fec50af0" }
{ "Name" : "2031", "PCA" :  5558 , "BHoM_Guid" : "deed135d-cd74-4033-8a91-7163e48a2e4b" }
{ "Name" : "2032", "PCA" :  5326 , "BHoM_Guid" : "f2056622-90ca-4939-a863-5fa731338fb4" }
{ "Name" : "2033", "PCA" :  5095 , "BHoM_Guid" : "3b102fc4-7ed5-4b09-b9ab-42722ec26e33" }
{ "Name" : "2034", "PCA" :  4863 , "BHoM_Guid" : "36166168-b49f-4c3d-9d46-ea22372f1c95" }
{ "Name" : "2035", "PCA" :  4632 , "BHoM_Guid" : "f7b840ab-c405-4c34-9ce3-92e0c7c7adf1" }
{ "Name" : "2036", "PCA" :  4400 , "BHoM_Guid" : "dfdd88f6-ead0-40a6-8c83-ebf211796f08" }
{ "Name" : "2037", "PCA" :  4169 , "BHoM_Guid" : "91be00ba-d751-449e-933e-a8781bb330fc" }
{ "Name" : "2038", "PCA" :  3937 , "BHoM_Guid" : "7dd52a03-05e4-4ce0-bb8b-52d67effdf6a" }
{ "Name" : "2039", "PCA" :  3706 , "BHoM_Guid" : "28803518-c273-4d19-9536-561e20195ec5" }
{ "Name" : "2040", "PCA" :  3475 , "BHoM_Guid" : "2d65cb36-9516-43ad-9bb0-201277004984" }
{ "Name" : "2041", "PCA" :  3243 , "BHoM_Guid" : "67be6966-112c-45a7-bde2-7f76cceb49d5" }
{ "Name" : "2042", "PCA" :  3012 , "BHoM_Guid" : "5839b715-0e11-4f01-bb14-23f050a45e39" }
{ "Name" : "2043", "PCA" :  2780 , "BHoM_Guid" : "81c6d1ac-4b3f-4ab3-bfd0-a712bbbdd452" }
{ "Name" : "2044", "PCA" :  2549 , "BHoM_Guid" : "95562422-5f2c-4d9a-a192-5fa6cc584195" }
{ "Name" : "2045", "PCA" :  2317 , "BHoM_Guid" : "797ad00f-ed65-404e-a4c5-315eb7439042" }
{ "Name" : "2046", "PCA" :  2086 , "BHoM_Guid" : "38227370-803d-4953-b17d-784195c5c793" }
{ "Name" : "2047", "PCA" :  1854 , "BHoM_Guid" : "74a45676-54ab-4879-a0eb-1436e8046e2d" }
{ "Name" : "2048", "PCA" :  1623 , "BHoM_Guid" : "988a922e-0109-4cb0-a816-2f302ba00c72" }
{ "Name" : "2049", "PCA" :  1391 , "BHoM_Guid" : "5ac6b5eb-ad39-4f8a-838a-8301449f6c6b" }
{ "Name" : "2050", "PCA" :  1160 , "BHoM_Guid" : "7ce1d531-de7a-4a0c-bdc9-a55ae4f2e0c0" }