Add parser branch--for Enhancing parsing speed

[Da1wn]

For enhancing parsing speed with multicore

We have introduced a multi-layer finite state machine,

which serves as the basis for enhancing the speed of
parallel processing of CSV files on single-machine multicore systems.

SIMD instruction sets are used to obtain the bitmap as quickly as possible.

The main modifications are in file src/import/RecordSet.h, RecordLoader.h, RecordLoader.cpp, CSVPathParser.h and CSVPathParser.cpp.

[CLAassistant]

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[CLAassistant]

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[ljcui]

Thanks for your contribution, please do not change the clang format.