v0.2 Flagging and correction interface

[lfoppiano]

In this PR we implemented:

• correction interface Correction interface  #7 and API #
• flagging interface Flagging interface #3 Feature/add flag column #29
• training data creation Training data creation after editing #11
• hide empty records Filter empty records #45
• documentation Add documentation in the interface or a link to a separate page #42
• rewrite completely the tabular interface Flagging interface #3
• new API using flaskapi with automatic documentation like swagger Add swagger on the API #8
• script to feedback excel corrected data from the old interface Feedback data from a corrected Excel #15
• various bug fixes Reduce space by text using icons #47 Group by document #46 We should not flag record that have been manually corrected  #41 remove blank character when updating or inserting a new record #48 Expand filter button div/icon expands to the whole page #30 Error handling in interface  #40 Validate if date is a timestamp type #35 avoid updates obsolete records  #33
• docker compose + CI Docker image  #18 Add docker / docker-compose build + semi-automatic deployment  #22 Add docker and docker-compse build  #20