add fields for columns of code fragments where they start/end
implement a function to create an AST from a file
[minor change] fix a misspelling
[bug fix] a bug that handles if/try statements in a wrong way was fixed
implement the function to detect instant code fragments
add a function to filter out fragments that are smaller than the given
threshold
implement a function to choose blocks with the given granularity
add classes to detect code fragments with multi threads
[minor change] modify a test resource
create a class to detect the list of files
create a class to write a reference file for a given project from the
reference file that has all the references among all the 8 projects
add some data classes for benchmark test of cdt
implement the function to load references and candidates
create a class to calculate metrics
add a function to detect mapping between references and candidates
create classes to evaluate the results of clone detection
create the main class for benchmark
[refactoring] move package
make ClonePair be a concrete class
[refactoring] move package