Semantic colors

[melanieseltzer]

Based on branch from @mathieudutour (see PR #326). Taking over to bring it up to date with master and get it ready.

To Do:

~From #326:~

• [ ] ~Look at the shades of blue and purple used, decide on primary and secondary colors~
• [ ] ~Go through the remaining RAW_COLORS and decide whether we want to add a new semantic color, make an exception, or better, change it to use an existing semantic color.~

~Anything else?~

Moved lingering to-dos to #378

[codecov[bot]]

Codecov Report

Merging #377 into master will increase coverage by 0.02%. The diff coverage is 75%.

@@            Coverage Diff             @@
##           master     #377      +/-   ##
==========================================
+ Coverage   57.91%   57.94%   +0.02%     
==========================================
  Files         158      158              
  Lines        3329     3331       +2     
  Branches      462      462              
==========================================
+ Hits         1928     1930       +2     
  Misses       1195     1195              
  Partials      206      206

Impacted Files	Coverage Δ
src/components/CreateNewProjectWizard/BuildPane.js	97.67% <ø> (ø)	:arrow_up:
...ponents/TextInputWithButton/TextInputWithButton.js	33.33% <ø> (ø)	:arrow_up:
...ts/DependencyManagementPane/DependencyUpdateRow.js	36.84% <ø> (ø)	:arrow_up:
...ents/DependencyManagementPane/DependencyDetails.js	100% <ø> (ø)	:arrow_up:
...c/components/CreateNewProjectWizard/ProjectPath.js	100% <ø> (ø)	:arrow_up:
...rc/components/AppSettingsModal/AppSettingsModal.js	96% <ø> (ø)	:arrow_up:
src/components/DirectoryPicker/DirectoryPicker.js	46.15% <ø> (ø)	:arrow_up:
src/components/ProgressBar/ProgressBar.js	100% <ø> (ø)	:arrow_up:
src/components/Modal/Modal.js	78.26% <ø> (ø)	:arrow_up:
...onents/CreateNewProjectWizard/BuildStepProgress.js	93.75% <ø> (ø)	:arrow_up:
... and 50 more

[melanieseltzer]

I'll extract the lingering to-dos into an issue :)