Separate documents according to their `doctype`

[anermina]

All the files from https://github.com/CalConnect/calconnect.org/tree/main/publications are encoded in #17.

However, I believe some documents should be moved to separate repositories based on their doctype (but I do not have access to other repositories).

The following documents are specifications:
0505
0507
0601
0701
0706
0903
0906
1004
1202
1301

reports:
0602
0604
0708
0805
0904
0905
0907
1011
1012
1104

advisory documents:
0514
0611
0709

standards:
0606
0703

I was not able to find the information about the doctypes for the following documents:
0702 (probably administrative)
0704 (probably administrative)
0705
0707
0805 (probably report)
1003
1006
1007
1008
1101