Remove BGP peer password requirement

[dimitarproynov]

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Summary of Pull Request

Remove BGP peer password requirement Clients of VCF have a use-case where the BGP peer password is not used.

Type of Pull Request

• [ ] This is a bug fix.
• [X] This is an enhancement or feature.
• [ ] This is a code style/formatting update.
• [ ] This is a documentation update.
• [ ] This is a refactoring update.
• [ ] This is a chore update
• [ ] This is something else. Please describe:

Related to Existing Issues

Issue Number: https://github.com/vmware/terraform-provider-vcf/issues/146

Test and Documentation Coverage

For bug fixes or features:

• [X] Tests have been completed.
• [X] Documentation has been added/updated.

Breaking Changes?

• [ ] Yes, there are breaking changes.
• [X] No, there are no breaking changes.

[vmwclabot]

@dimitarproynov, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <john.doe@email.org> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit e393d6e94c39900c2766072e943597c6b50f9e6b must be signed by proynovd@vmware.com

[github-actions[bot]]

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