PoolV2: Use default crypto context - it's thread-safe - because creation of new one failing in Docker on linux host (#2847)

This reverts commit 7234210f.

Setting a period !=0 allows mining of empty blocks

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* Update header_algos.go

* Update stage_headers.go

* Update header_algos.go

* Use decompressor

* Use decompressor

* Close compressor

* Upgrade to latest erigon-lib

* Fix compile errors

* Fix lint

* Remove count from files

* Remove count from files

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>
Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* updated Fermion extradata + fixed bug with PublicKey

* Update Fermion extradata: fix genesis hash

This reverts commit 7f58290a.

* Update header_algos.go

* Update header_algo_test.go

* Update header_algos.go

* Update header_data_struct.go

* switched Fermion to Clique

* Update Fermion to Clique: updated genesis block hash

* #2658: removed using HeadersSeal function from experiments module

* #2658: lint issues

* #2658: fix typo

* Update Ethereum tests to v10.0

* Implement EIP-3607

Co-authored-by: Aleksandr Borodulin <a.borodulin@axioma.lv>

* Change to use Patten inside patricia tree

* Huffman codes for compression

* Huffman coding of positions, generate tx files to test compression

* Split state into 3 files, relative positions, average decoding time

* Small optimisations of decompression

* Optimise intermediate compression

* Update erigon-lib ref

* Fix lint

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>