Microsoft collectors and parser: Adapt to new feeds

[sebix]

These bots need an update:

• Microsoft Interflow Collector
• Microsoft CTIP Parser

because:

CTIP data is no longer provided via Interflow but through a new dedicated API now.
The data format changed as well and no longer includes "severity".

See mailing list thread
https://helenus.cert.at/mailman3/hyperkitty/list/intelmq-dev@lists.cert.at/thread/TJJCHFOMURSOUI73JCSZELKTFERDRWCB/#TJJCHFOMURSOUI73JCSZELKTFERDRWCB