Add PrivacyInfo.xcprivacy

[garricn]

Addresses #324.

See Describing use of required reason API for more information.

Required Reason API Used	Used in File
NSFileModificationDate	PINCache/Source/PINDiskCache.m
NSFileModificationDate	PINCache/Tests/PINCacheTests.m
NSURLContentModificationDateKey	PINCache/Source/PINDiskCache.m
NSURLCreationDateKey	PINCache/Source/PINDiskCache.m

[hotngui]

The PrivacyInfo.xcprivacy file also needs to be added to the Package.swift file as a resource to by copied/processed.

[EFFYLYX]

When would you like to merge this PR?

[garricn]

When would you like to merge this PR?

Hi @EFFYLYX. Thank you for replying. It would be great if this PR can merge now. Are you able to merge it?

[farzadshbfn]

@tinder-owenthomas any chance of merging this PR soon? we're approaching the deadline and it's good to give teams lead-time on updating their frameworks'.

[jparise]

This change looks reasonable to me, so I'll help move things along by merging this. That will also give time for folks to adopt this change and provide feedback on anything that might need to be adjusted.

[gazadge]

Hey @jparise,
I added a new PR related to this issue for including the .xcprivacy file as resource when installing PINCache via Cocoapods. When you get a chance can you take a look?