feat: added support for multiple proxy split

[anaik91]

Description

What's changed, or what was fixed?

• Support for multiple proxy split / unification

Issues Fixed

N/A

Housekeeping

(please check all that apply [x], do not edit the text)

• [x] I have run all the tests locally and they all pass.
• [x] I have followed the relevant style guide for my changes.

Full Repo Validation Required

(please check all that apply [x], do not edit the text)

• [ ] PR requires full pipeline run (Run for changes only by default).

CC: @apigee-devrel-reviewers

[danistrebel]

/gcbrun

[apigee-devrel-bot]

Pipeline Report

Pipeline	Result	Elapsed Wall Time
tools/proxy-endpoint-unifier	fail	2s
TOTAL PIPELINE	pass	2s

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Commit version: 2e30f5e

[danistrebel]

/gcbrun

[danistrebel]

/gcbrun

[apigee-devrel-bot]

Pipeline Report

Pipeline	Result	Elapsed Wall Time
tools/proxy-endpoint-unifier	fail	1s
TOTAL PIPELINE	pass	1s

View details in Cloud Build (permission required)

Commit version: 7c50710

[OmidTahouri]

See build logs for environment errors

[danistrebel]

/gcbrun

[apigee-devrel-bot]

Pipeline Report

Pipeline	Result	Elapsed Wall Time
tools/proxy-endpoint-unifier	pass	6s
TOTAL PIPELINE	pass	6s

View details in Cloud Build (permission required)

Commit version: a9ccfe8