modified getopt to handle --query option

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>
Ignore build and manifest from distutils

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>
adding checkDependencyPath to check who is requiring a given file

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>
adding query option

Now it is possible to query if a given swirl is requiring a given file or not

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>
Using which instead of multiple isfile statement

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>
Added a unit test for the query option

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>
the new query flag is now documented

Signed-off-by: Luca Clementi <luca.clementi@gmail.com>