Add login

[CamBrown101]

• Add User class
• Add ability to edit password
• Add Views for registration, login, welcome page and password change

[codecov-commenter]

Codecov Report

Merging #19 (f9b2bca) into master (0d9048e) will decrease coverage by 25.68%.
The diff coverage is 16.39%.

❗ Current head f9b2bca differs from pull request most recent head 222e26d. Consider uploading reports for the commit 222e26d to get more accurate results

@@             Coverage Diff             @@
##           master      #19       +/-   ##
===========================================
- Coverage   64.81%   39.13%   -25.69%     
===========================================
  Files          11       16        +5     
  Lines          54      115       +61     
===========================================
+ Hits           35       45       +10     
- Misses         19       70       +51     

Impacted Files	Coverage Δ
app/controllers/passwords_controller.rb	0.00% <0.00%> (ø)
app/controllers/registrations_controller.rb	0.00% <0.00%> (ø)
app/controllers/sessions_controller.rb	0.00% <0.00%> (ø)
app/controllers/application_controller.rb	83.33% <80.00%> (-16.67%)	⬇️
app/models/current.rb	100.00% <100.00%> (ø)
app/models/user.rb	100.00% <100.00%> (ø)

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