Add project id to openstack wizard

[floreks]

What this PR does / why we need it:
Added new Project ID field to openstack wizard.

NOTE: We do not have a way to validate if provided project id is valid. In case it is not, in the create step API will throw an error saying that cloudspec is invalid. API should either allow us to validate project id first, or adjust the error message for this case.

TODO

• Add tests

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #1311

Release note:

Add support for Project ID to Openstack wizard

[codecov]

Codecov Report

Merging #1386 into master will decrease coverage by 0.6%.
The diff coverage is 51.94%.

@@            Coverage Diff             @@
##           master    #1386      +/-   ##
==========================================
- Coverage    73.8%   73.19%   -0.61%     
==========================================
  Files         203      204       +1     
  Lines        6096     6204     +108     
  Branches      562      584      +22     
==========================================
+ Hits         4499     4541      +42     
- Misses       1370     1419      +49     
- Partials      227      244      +17

Impacted Files	Coverage Δ
src/app/testing/fake-data/cluster.fake.ts	95.83% <ø> (ø)	⬆️
...enstack-node-data/openstack-node-data.component.ts	69.23% <25%> (-1.1%)	⬇️
src/app/core/services/wizard/provider/provider.ts	73.91% <25%> (-10.3%)	⬇️
src/app/core/services/wizard/provider/openstack.ts	62.68% <50%> (-1.25%)	⬇️
...provider-settings/openstack/openstack.component.ts	70.09% <55.55%> (-5.05%)	⬇️
src/app/shared/utils/wizard-utils/wizard-utils.ts	76.59% <0%> (-10.64%)	⬇️
.../wizard/set-datacenter/set-datacenter.component.ts	72.72% <0%> (-10.61%)	⬇️
src/app/wizard/progress/progress.component.ts	81.81% <0%> (-8.66%)	⬇️
src/app/pages/frontpage/frontpage.component.ts	70.96% <0%> (-3.23%)	⬇️
...ard/set-cluster-spec/set-cluster-spec.component.ts	84.78% <0%> (-2.18%)	⬇️
... and 14 more

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[floreks]

Waiting for kubermatic/kubermatic#3837 to get merged, so I can adjust the logic to it.

[floreks]

/retest

[floreks]

/retest pull-dashboard-headless-test

[maciaszczykm]

/lgtm
/approve

[kubermatic-bot]

LGTM label has been added.

Git tree hash: 15a157374c125f77ec50befd5427f7bff911f08a

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: maciaszczykm

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• OWNERS [maciaszczykm]

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[floreks]

/retest

[floreks]

/test pre-build-dashboard-image