Add datastore support to vsphere provider

[floreks]

What this PR does / why we need it:

• Added Datastore and Datastore Cluster support to vsphere provider in wizard
• Fix summary view layout

Which issue(s) this PR fixes:
Fixes #2611

Release note:

Add Datastore/Datastore Cluster support to the VSphere provider in the wizard.

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floreks

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• OWNERS [floreks]

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[codecov]

Codecov Report

Merging #2762 into master will decrease coverage by 0.68%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2762      +/-   ##
==========================================
- Coverage   52.32%   51.63%   -0.69%     
==========================================
  Files         234      234              
  Lines        8211     8413     +202     
  Branches      981     1016      +35     
==========================================
+ Hits         4296     4344      +48     
- Misses       3912     4066     +154     
  Partials        3        3              

Impacted Files	Coverage Δ
src/app/shared/entity/cluster.ts	57.57% <ø> (ø)
.../cluster/cluster-details/edit-sshkeys/component.ts	35.71% <0.00%> (-8.04%)	⬇️
src/app/cluster/cluster-details/component.ts	51.43% <0.00%> (-3.03%)	⬇️
src/app/cluster/cluster-list/component.ts	57.21% <0.00%> (-2.91%)	⬇️
src/app/core/services/api/service.ts	3.73% <0.00%> (-1.50%)	⬇️
src/app/cluster/services/node.service.ts	45.94% <0.00%> (-1.23%)	⬇️

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[maciaszczykm]

/lgtm

[kubermatic-bot]

LGTM label has been added.

Git tree hash: f1f53edbc8408bb99aedf099d443747054300554