Refactor authentication for requests to CommCare#1575

Draft

snopoke wants to merge 19 commits intomasterfrom

sk/auth-session

Commits on Apr 16, 2024

ensure session_id is set in response
snopoke
committed

Commits on Apr 23, 2024

move hmac request modifications generation to request interceptor
snopoke
committed

Commits on Apr 25, 2024

update headers test
snopoke
committed

Commits on May 3, 2024

Commits on May 28, 2024

Merge branch 'master' into sk/auth-session
snopoke
committed