Fix broekn reporting

[mormamn]

Description

Fixes a problem with the reporting/dispatchers. Added a test file for the functions

Contribution Guidelines

Please Read through the Contribution Guidelines.

Fixed Issues

Fixes #312

"BEFORE" and "AFTER" output

To verify that the change works as desired, please include an output of terminal before and after the changes under headings "BEFORE" and "AFTER".

BEFORE

~ Started ~ Discovering Open Kubernetes Services...

AFTER

~ Started ~ Discovering Open Kubernetes Services...

---

Kube Hunter couldn't find any clusters

Contribution checklist

• [X] I have read the Contributing Guidelines.
• [X] The commits refer to an active issue in the repository.
• [X] I have added automated testing to cover this case.

Notes

Please mention if you have not checked any of the above boxes.

[codecov-io]

Codecov Report

Merging #313 into master will decrease coverage by 0.1%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #313      +/-   ##
==========================================
- Coverage   60.25%   60.15%   -0.11%     
==========================================
  Files          41       41              
  Lines        1945     1945              
==========================================
- Hits         1172     1170       -2     
- Misses        773      775       +2

Impacted Files	Coverage Δ
kube_hunter/modules/report/factory.py	100% <100%> (+47.05%)	:arrow_up:
kube_hunter/modules/discovery/ports.py	76.92% <0%> (-11.54%)	:arrow_down:
kube_hunter/modules/hunting/apiserver.py	69.63% <0%> (-1.99%)	:arrow_down:
kube_hunter/core/events/handler.py	89.89% <0%> (-1.02%)	:arrow_down:

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