Check what changed in firmware v3.3

[hrw]

Newer firmware version allows to send RSS to device. There could be more changes too.

My Onyx Boox Nova 2 is still on v3.2 firmware so can not check.

[hrw]

RSS functionality (parses only RSS 2.0, no Atom):

• /api/1/subscribe/list
• /api/1/subscribe/folder
• /api/1/rsses/public/recommend
• /api/1/rsses/one/detail?id=62ec8fc10f9f61452dcc6dda
• /api/1/subscribe/sub
• /api/1/rsses/public/search?text=nasa&sourceType=0

ODPS functionality (done as RSS with different type):

• /api/1/rsses/public/search?text=twetw&sourceType=2

Will wait for Atom support and working ODPS (current one does not handle my personal one).