* add relay-block-filter

* modify

* modify

* modify

* modify

Co-authored-by: Vitor Nazário Coelho <vncoelho@gmail.com>

* Adding some comments to datacache

* Adding Exception comment tip of @Tommo-L

Co-authored-by: Shargon <shargon@gmail.com>

…1389)

* update

* change fifoset to hashsetcache for knownhashes and senthashes

* format

* optimise HashSetCache

* remove FIFOSet

* remove FIFOSet and update ut

* change List to LinkedList

* remove bucket count upper limit

* update exception message

* Adding some comments

* dotnet format

* rename maxBucketCount

* format

* Cache count

* Vitor suggestions

* Update HashSetCache.cs

* format

* Fix

* fix counting count

* optimise

* optimse

* update List

Co-authored-by: Shargon <shargon@gmail.com>
Co-authored-by: Vitor Nazário Coelho <vncoelho@gmail.com>

…ived (#1408)

* add containsTx recheck

* add UT

* Update to just View check

* update

* revert

* Update UT_Blockchain.cs

Co-authored-by: Vitor Nazário Coelho <vncoelho@gmail.com>

* inputs validation

* more validation

* recover constructor in ECPoint

* format

* minor changes

* format

* changes based on review

* recover validation in AesEncrypt

…60 (#1387)

* Fix undefined layout behaviour, and remove pinning

* Update UInt256.cs

* Update UInt256.cs

* add StructLayout

* set pack=1

* Explicit

* Remove UIntBase

* Revert constructor

* add unsafe

* Comment

* Comment Uint256

* Removing comments from value 1

* Removing comments from value1

Co-authored-by: Luchuan <luchuan@ngd.neo.org>
Co-authored-by: Vitor Nazário Coelho <vncoelho@gmail.com>
Co-authored-by: Erik Zhang <erik@neo.org>
Co-authored-by: Shargon <shargon@gmail.com>

* Verify Import

* Default true

Co-authored-by: Vitor Nazário Coelho <vncoelho@gmail.com>