Fixes #14 Implemented progressbars

[kkazmierczyk]

The code uses tqmd library to track the progress. It is added in parsing javacore files, generating xml/xsls and htmls. These are the most long running operations.

[kkazmierczyk]

@PiotrAniola82 @tjanasiewicz any chance to merge this?

[PiotrAniola82]

Travis builds are failing, so these need to be fixed first

[tjanasiewicz]

@kkazmierczyk

1. Is it expected that to be able to execute the JCA from this branch tqmd needs to be installed (pip install tqdm)
2. Not sure what units are in use, it should be clarified:
   Parsing Javacore files: 100%|██████████| 5/5 [00:06<00:00, 1.24s/it]
3. Is it expected that even after reaching 100% the entry will not change the color and stay red?

It is not affecting the builds, but I would still like to verify at least the details mentioned above before this request is accepted.

[kkazmierczyk]

@tjanasiewicz answers on your questions:

1. Is it expected that to be able to execute the JCA from this branch tqmd needs to be installed (`pip install tqdm`)

Yes. It is added already in requirements.txt

2. Not sure what units are in use, it should be clarified:
   Parsing Javacore files: 100%|██████████| 5/5 [00:06<00:00,  1.24s/**it**]

Good point. I have added it in 2df4ec7

3. Is it expected that even after reaching 100% the entry will not change the color and stay red?

Aparently, this is how this library works. I tried to use parameter colour (/~https://github.com/tqdm/tqdm) but it did not make any effect. I do not know how to change it. However it might depend on the console type. In travis the color is standar one: https://app.travis-ci.com/github/IBM/javacore-analyser/builds/273281736.