Adds support for Carthage by adding xcodeproj in the root directory.

[wrutkowski-tyro]

Hello, thanks for creating this library! I'd like to use it with Carthage so I created a branch that supports Carthage. Basic requirement is to have a Xcodeproj in the root directory which I created using xcodegen and I checked in project.yml so it should be easy to recreate the Xcode project again if needed. I had to provide bundle identifier so I picked com.github.oleghnidets. Let me know if you are happy with this change.

[oleghnidets]

Hi @wrutkowski-tyro!
Thank you for great contribution.

Carthage is awesome improvement to this library. I definitely like to see it supported. I will check the changes in couple of days.
Did you integrate the library from the branch? Is it working fine with Carthage?

[wrutkowski-tyro]

Yes, we integrated it to our project using carthage and (for now) using my fork as a reference. It's working as expected.

Cartfile:

github "wrutkowski-tyro/OHMySQL" "carthage-support"

carthage update:

❯ carthage update --platform iOS --use-xcframeworks OHMySQL
*** Fetching OHMySQL
*** Checking out OHMySQL at "acfb90f443c34b802e0d12f9df08898bf6f19eaa"
*** xcodebuild output can be found in /var/folders/rl/bncglbnj2pgbyjnbp54qsvbd2dfnjy/T/carthage-xcodebuild.ZXcbZI.log
*** Building scheme "OHMySQL" in OHMySQL.xcodeproj

The only manual step required to integrate except dropping xcframework of OHMySQL from Carthage/Build folder was to manually add MySQL.xcframework that's part of your repo. Carthage doesn't have a support for dependency that's part of the same repository to move the MySQL.xcframework to the Build folder.

[oleghnidets]

Hey @wrutkowski-tyro
I like this PR, but I wish to have this improvement documented.

Could you create a documentation (*.md) in docs folder? Describe there how to configure xcodegen to generate projects.
I'm going to update documentation in near future, so I will have a reference to your documentation.
Thanks

[wrutkowski-tyro]

Hi @oleghnidets 👋 I added documentation as requested.

[wrutkowski-tyro]

Thanks for merging @oleghnidets 👏 Would you be able to create a tag / release so we can start using master instead of the fork?