Allow setting storage mappings for OVA disks

[mansam]

• Exposes OVA appliance disks as mappable storage in the OVA inventory collector.
• Permits mapping any or all OVA appliance disks to their own destination storage classes.
• This requires a UI change in order to list the source disks in the storage mapping creation view properly. This case needs to be replaced with code similar to the other providers to list the source storage (disks) belonging to the selected VMs.

Implements #1213

Note: Please ignore default mapping in below screenshots, the default mapping has been removed.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 62 lines in your changes missing coverage. Please review.

Project coverage is 15.42%. Comparing base (b0b9ae7) to head (e49a10f).
Report is 21 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/controller/plan/adapter/ova/builder.go	0.00%	49 Missing ⚠️
pkg/controller/plan/adapter/ova/validator.go	0.00%	13 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1266      +/-   ##
==========================================
- Coverage   15.61%   15.42%   -0.20%     
==========================================
  Files         112      112              
  Lines       23134    23426     +292     
==========================================
+ Hits         3612     3613       +1     
- Misses      19237    19528     +291     
  Partials      285      285              

Flag	Coverage Δ
unittests	15.42% <0.00%> (-0.20%)	⬇️

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
9.2% Duplication on New Code

See analysis details on SonarQube Cloud

[mnecas]

LGTM, before merging this we need to sync with the UI and docs

[mansam]

Storages:

Disks:

I've pushed a forklift-controller image including these changes to my quay account quay.io/slucidi/forklift-controller:ova-multidisk