SwiftPM 5.3 support with resource bundle and watchOS support

[maniramezan]

This is currently WIP due to Swift 5.3 being in beta. This CR includes the work for fixing the unit tests in addition to prevent app crashing due to unavailability of the bundle. This is based on the #291 PR, but if that branch deosn't get merged in by the time Xcode 12 / Swift 5.3 is released, this can be cleaned up and used instead and the other PR should be disregarded.

[pontusm]

Would it be possible to support watchOS as well? We are using DateTools on watchOS today, but with Cocoapods. We are planning to migrate to SPM in the future.

[maniramezan]

@pontusm Not much familiar with limitations of WatchOS, but can definitely look into it and enable it as part of this PR. I'm planning to clean it up and make the final version of it this week. I'll merge it into master branch on my fork and leave the PR open for the maintainer to decide if want to merge it in or when.

[pontusm]

That would be great! As I mentioned, we already use it on watchOS so I don't think you have to do much to support it. Probably just need to add it to the "platforms" list in the package file.

[maniramezan]

@pontusm It's ready for being merge into the main branch. I'm going to merge it into my fork, so feel free to use that.

[atrbx5]

tried and getting error
ld: warning: directory not found for option '***/Carthage/Build/iOS'
ld: framework not found DateToolsSwift

[maniramezan]

@atrbx5 I don't know if this library supports Carthage, #184 is what I found in previous issues.

[atrbx5]

ok figured out, long ago i was using cartage on the project and not all OTHER_LDFLAGS was removed
so when import it with SPM it was still looking for binary
works ok now

[daltonclaybrook]

Any update on this?

[maniramezan]

It is merged in my fork. Feel free to use that or fork from mine. I've only added SPM support and fixed some tests, no other changes are in this fork.