updated fuzzy matching pipeline - approach 1

[mshaban-msft]

steps:

1. tokenize input sentence
   • different levels of tokenization
   • 1-word tokens, 2-word tokens, ..
   • ex: "i want to travel from cairo to new york"
   • 1-word tokens ["i", "want", "to", ..., "new", "york"]
   • 2-word tokens ["i want", "to travel", ..., "new york"]
2. match against pre-processed dataset

this way we'll be able to get start and ending indices for matched results