remove bad test
remove debugger
added millionFilter support
added more test for million
added support other millions cases
clean up other filters to use same unit seperator strategy as millionFilter
embed digitFilter chain inside tensFilter
embed tensFilter call inside hundredsFilter
embed hundredsFilter call inside thousandFilter
embed thousandFilter call inside millionFilter
remove unneccessary forEach
prepare for removing resultText as argument
remove duplicate logics
removed texts argument
format code
format class structure
introduce createNestedFilter to remove duplicate conceptual logics
support dash in between tens
add fail test for billions