Add chat interface

[alejgh]

Closes #28 Added a new chat interface that allows users to create incidents. You need to be logged in to access this view (either by going directly to "incident/create" or clicking a button in the incidents view). I also added some documentation, selenium tests, and changed a bit the functionality of the log in system.

[codecov[bot]]

Codecov Report

Merging #36 into master will increase coverage by 6.64%. The diff coverage is 84.61%.

@@             Coverage Diff              @@
##             master      #36      +/-   ##
============================================
+ Coverage     74.74%   81.39%   +6.64%     
- Complexity      121      138      +17     
============================================
  Files            22       22              
  Lines           396      430      +34     
  Branches         44       47       +3     
============================================
+ Hits            296      350      +54     
+ Misses           81       59      -22     
- Partials         19       21       +2

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/com/uniovi/entities/AgentInfo.java	51.21% <ø> (ø)	12 <0> (ø)	:arrow_down:
src/main/java/com/uniovi/entities/LatLng.java	100% <ø> (+16.66%)	3 <0> (+1)	:arrow_up:
...rc/main/java/com/uniovi/services/KafkaService.java	11.11% <0%> (ø)	2 <0> (ø)	:arrow_down:
...ava/com/uniovi/controllers/IncidentController.java	100% <100%> (ø)	5 <2> (+2)	:arrow_up:
...a/com/uniovi/services/InsertSampleDataService.java	100% <100%> (+31.03%)	3 <2> (+1)	:arrow_up:
...om/uniovi/controllers/IncidentsInfoController.java	95.23% <100%> (+1.9%)	8 <2> (+2)	:arrow_up:
src/main/java/com/uniovi/entities/Incident.java	89.06% <100%> (+24.06%)	28 <2> (+7)	:arrow_up:
...ain/java/com/uniovi/services/IncidentsService.java	100% <100%> (ø)	10 <2> (+1)	:arrow_up:
...c/main/java/com/uniovi/services/AgentsService.java	76.92% <64.7%> (-6.42%)	7 <1> (+1)
...in/java/com/uniovi/repositories/CSVFileParser.java	87.5% <90%> (+0.83%)	15 <2> (+2)	:arrow_up:
... and 2 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update d81fa82...0d5bae7. Read the comment docs.

[alejgh]

Some of the issues pointed out by Codacy in the JavaScript files are completely illogical and solving them will produce less understandable and maintanable code overall. That's why I included a codacy.yml file ignoring the javascript files (I solved most of the issues there nevertheless, except the ones that didn't make sense).