* Added TimeInForce type and updated related files
* Linter issue fix and minor coinbasepro type update
* Bitrex consts update
* added unit test and minor changes in bittrex
* Unit tests update
* Fix minor linter issues
* Update TestStringToTimeInForce unit test
* fix conflict with gateio timeInForce
* Update order tests
* Complete updating the order unit tests
* update kucoin and deribit wrapper to match the time in force change
* fix time-in-force related test errors
* linter issue fix
* time in force constants, functions and unit tests update
* shift tif policies to TimeInForce
* Update time-in-force, related functions, and unit tests
* fix linter issue and time-in-force processing
* added a good till crossing tif value
* order type fix and fix related tim-in-force entries
* update time-in-force unmarshaling and unit test
* fix time-in-force error in gateio
* linter issue fix
* update based on review comments
* add unit test and fix missing issues
* minor fix and added benchmark unit test
* change GTT to GTC for limit
* fix linter issue
* added time-in-force value to place order param
* fix minor issues based on review comment and move tif code to separate files
* update on exchanges linked to time-in-force
* resolve missing review comments
* minor linter issues fix
* added time-in-force handler and update timeInForce parametered endpoint
* minor fixes based on review
* nits fix
* update based on review
* linter fix
* rm getTimeInForce func and minor change to time-in-force
* minor change
* update based on review comments
* wrappers and time-in-force calling approach
* minor change
* update gateio string to timeInForce conversion and unit test
* updated order test unit tes functions
* minor fixes on unit tests
* nits fix based on feedback
* update TestDeriveCancel unit test assert messages
* update TestDeriveCancel unit test assert messages
* update timeInForceFromString method to return formatted error and update functions using it
* restructure and fix minor exchanges time-in-force handling issues
* replaced unused getTypeFromTimeInForce with inline switch-based order type check
* separated the repeated timeInForce conversion code to a function
* update exchanges time-in-force handling based on review comments
* limter fix
* edded comment to validTimesInForce var
* added comment to gateio's timeInForceString func
* added goodTillCancel switch case to gateio timeInForceString func