adding better documentation for the customization module

[mikemorency]

SUMMARY

Updates the examples in the vm customization module to be more detailed and cover both the linux and cloud-init configuration schemes.

Fixes
#472
#527

ISSUE TYPE

• Docs Pull Request

COMPONENT NAME

vcenter_vm_guest_customization

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.04%. Comparing base (a9a257f) to head (0cb44d6).
Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #534      +/-   ##
==========================================
+ Coverage   36.58%   37.04%   +0.46%     
==========================================
  Files         145      145              
  Lines       11549    11388     -161     
  Branches     2301     2258      -43     
==========================================
- Hits         4225     4219       -6     
+ Misses       7324     7169     -155     

Flag	Coverage Δ
sanity	37.04% <ø> (+0.46%)	⬆️

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[softwarefactory-project-zuul]

Build succeeded.
https://ansible.softwarefactory-project.io/zuul/buildset/eacd44719e764767a325757fd222d2d8

✔️ ansible-test-cloud-integration-vmware-rest SUCCESS in 13m 22s
✔️ build-ansible-collection SUCCESS in 7m 47s
✔️ ansible-galaxy-importer SUCCESS in 3m 26s

[softwarefactory-project-zuul]

Build succeeded (gate pipeline).
https://ansible.softwarefactory-project.io/zuul/buildset/836363a2a9db45399e8602a0e69cffc6

✔️ ansible-test-cloud-integration-vmware-rest SUCCESS in 10m 59s
✔️ build-ansible-collection SUCCESS in 7m 51s
✔️ ansible-galaxy-importer SUCCESS in 6m 32s

[sean-freeman]

@mikemorency @bardielle This PR takes my provided code in #471 for cloud-init, but does not fix #471 and therefore is documenting a procedure that cannot possibly work for any end-user. It should be removed from the Ansible Collection documentation until the procedure is confirmed working.