3.1.0 - PoC

What's Changed

• OrderBook: market maker network fee by @wer1st in #762
• OrderBook: enable synthetic assets by @wer1st in #763
• Fix clippy warnings (Assets pallet) by @pakrentos in #761
• XORless transfer by @vovac12 in #758
• Delete order book optimization by @wer1st in #767
• Band pallet clippy fixes by @pakrentos in #768
• Ceres launchpad clippy fixes by @pakrentos in #770
• XORless transfer improvements by @vovac12 in #777
• XORless transfer fixes by @vovac12 in #781
• Prepare for release 3.1.0 by @vovac12 in #782

Full Changelog: test-3.0.1...test-3.1.0