PWX-34294: storkctl need to parse https px endpoints properly, also need to assign default ports for http and https endpoints.

[diptiranjanpx]

Signed-Off-By: Diptiranjan

What type of PR is this?
bug

What this PR does / why we need it:

1. Need to accept both https/http px endpoints.
2. Need to provide default port as 80 or 443 with host names if not provided.

Does this PR change a user-facing CRD or CLI?:

Is a release note needed?:

Issue: https px endpoints were not working with storkctl create clusterpair.
User Impact: Migrations between clusters with ssl enabled px endpoints were not working.
Resolution: Both https and http endpoints with the scheme is now accepted as src-ep and dest-ep with storkctl create clusterpair.

Does this change need to be cherry-picked to a release branch?:

Test
Tested with

1. https endpoints
2. http endpoints
3. Endpoints without port
4. Endpoints without scheme
5. Auto fetching endpoints
   Details have been added in PWX-34294

[cnbu-jenkins]

Can one of the admins verify this patch?

[codecov]

Codecov Report

Attention: 17 lines in your changes are missing coverage. Please review.

Comparison is base (56aa1f2) 65.93% compared to head (a4b62b3) 66.09%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1537      +/-   ##
==========================================
+ Coverage   65.93%   66.09%   +0.15%     
==========================================
  Files          43       43              
  Lines        5349     5383      +34     
==========================================
+ Hits         3527     3558      +31     
- Misses       1490     1491       +1     
- Partials      332      334       +2     

Files	Coverage Δ
pkg/storkctl/clusterpair.go	21.91% <61.36%> (+3.09%)	⬆️

... and 1 file with indirect coverage changes

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[pp511]

lgtm