Feature/user registration

[MICHAELMUNAVU83]

Fixes #5
In the pull request below , the following tasks were done .

1. create a table on the database to save the user details to
2. create the logic to save the details submitted by the user
3. work on the UI (refer to the design provided above)
4. Error handling on the form
5. Write tests for this functionality

[manuelgeek]

we've not discussed db strucure, but I would suggest we have an accounts table
this is too much info for a users table

[MICHAELMUNAVU83]

Okay , I will wait for the db structure discussion at 6 pm then restructure accordingly

[okothkongo]

@MICHAELMUNAVU83 This is a good job, especially the UI 👍

I believe this fixes 3 issues at hand:

1. The creation/ registration of a user
2. Login
3. Password reset

Kindly ensure that when moving this issue on the board, you also move its associated issues.

@75pollet WDYT?

My other take though not mandatory you can always share a gif or screenshot when a PR involves UI.

Also, I noticed you improved our test coverage to 98.2%, you setting a high standard 😄 , Kindly adjust the value in
coveralls.json file to keep this high standard, i.e.

  
  "coverage_options": {
    "minimum_coverage": 98.2
  },
  "skip_files": ["lib/elixir_conf_africa_web/components/core_components.ex"]
}

I will hold my approval until the DB structure is agreed upon, but everything is great and looks good to me as it is