Ukupacha

What's Changed
* Suporte para relacionar la misma tabla varias veces con diferentes alias by omazapa in https://github.com/colav/UkuPacha/pull/11
* Working in blockdiag implementation by omazapa in https://github.com/colav/UkuPacha/pull/10
* Fixes by omazapa in https://github.com/colav/UkuPacha/pull/14


**Full Changelog**: https://github.com/colav/UkuPacha/compare/v0.0.7-alpha...v0.0.9-alpha

* Added support to save tracebacks in failed registers
* Added support to extract CLOB and BLOB

This is a complicated bug fixed regarding the dates in Oracle SIIU,
all the dates will be saved as strings to get the raw data.

new versions of pandas requires SQLAlchemy for the communication with SQL databases
* Implemented support for SQLAlchemy
* parallization using cx_Oracle.SessionPool

* Added support for filter function to handle special cases.
* fixed problem with parallel execution, https://www.oracle.com/technical-resources/articles/embedded/vasiliev-python-concurrency.html
* added support for checkpointing.
* implemented Codec for BSON required for MongoDB to support the data type Oracle.LOB
https://cx-oracle.readthedocs.io/en/7.1/lob.html#LOB and https://pymongo.readthedocs.io/en/stable/examples/custom_type.html

fixed graph2json parser bug.