[#1351] IATI export v2

[KasperBrandt]

First version of IATI export for v2.01 (see issue for test plan).

@gabemart There's a bit of inline styling in /templates/myrsr/my_iati.html, as well as the use of the udpateComponent class. Could you take a look and fix that properly in the styling files?
Styling in general should be looked at as well btw.

[iperdomo]

Checklist

• Test plan
• Copyright header
• Code formatting

[landscape-bot]

Repository health increased by 10% when pulling 6aa5459 on 1351_iati_export_v2 into 17f4703 on develop.

• 4 new problems were found (including 0 errors and 3 code smells).
• 1108 problems were fixed (including 28 errors and 99 code smells).

[landscape-bot]

Repository health increased by 9% when pulling 3b85150 on 1351_iati_export_v2 into ec46ac7 on develop.

• 4 new problems were found (including 0 errors and 3 code smells).
• 1011 problems were fixed (including 28 errors and 5 code smells).

[kardan]

To me everything seems to work fine. Might be a good thing to later when tests are in mainline add some testing on valid and invalid "raw data" but that is for later.