Features 2565 - Integration libdap-chain-net-python with python-cellframe

See merge request !4

[+] Added regulations for compile dap_session dap_http_server, dap_enc_server with parameter '-fpic'

[*] Updated submodule 12//05//19.

See merge request !3

Features 2564 - Integrations libdap-chain-python with python-cellframe.

See merge request !2

[+] Added the ability to work with Python for the following types of objects: ChainID, ChainCellID, ChainNodeAddr, ChainHashSlow, ChainHashFast, ChainHashSlowKind, ChainAddr, ChainLedger. They are implemented in libdap-chain-python.

[+] Added access to objects Chain, ChainType, ChainAtomIter, ChainCell, ChainCommon, ChainCS, ChainDatumTypeID, ChainDatum, ChainDatumIter, ChainDatumToken, ChainDatumTokenEmisson, ChainTxItemType, ChainTxCondType, ChainDatumTx, ChainTxOutCond.

Features 2466

See merge request !1

[+] Added initialization of the libdap-server-core-python module. Also added support for ServerCore, Event, EventSockect objects from the libdap-server-core-python library.

[+] Added the ability to set the registration level. Using words and not numbers. Changed the Unit test so that he would also use this function.

[+] Added function call from libdap-python. More precisely, the description has been added to the array of calls that are available from Python.