feature: adding api and web to meta api endpoint.

[Jamian]

The Api and Web lists are returned from the meta API but still aren't supported in the Go library. This change exposes them in the same way as the other blocks which are returned. I'm working on a change in the GitHub Terraform provider to also support exposing these API/Web CIDRs so if this is all ok I can continue on with that change as well.

[google-cla]

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[gmlewis]

Thank you, @Jamian !
Just a couple minor tweaks, please, in addition to the CLA.

[codecov]

Codecov Report

Merging #2435 (05d67f4) into master (acca0b6) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2435   +/-   ##
=======================================
  Coverage   98.08%   98.08%           
=======================================
  Files         122      122           
  Lines       10632    10632           
=======================================
  Hits        10428    10428           
  Misses        140      140           
  Partials       64       64           

Impacted Files	Coverage Δ
github/misc.go	100.00% <ø> (ø)

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[Jamian]

@gmlewis Hey, thanks for the feedback. I have made the changes and sorted the CLA out. 👍

[gmlewis]

Thanks, @Jamian ! I think the tests might need updating, please.

[Jamian]

Hey @gmlewis, of course - awkwardly embarrassing! Just pushed the fixes to get tests passing 🤞

[gmlewis]

Thank you, @Jamian !
LGTM.
Merging.