Change default target "Sentry" to use compile-from-source

[philprime]

Starting with the next major release we should switch the default target Sentry to be the same as SentrySPM, which should be marked as deprecated (if possible) but kept around.

The pre-compiled binary target will be changed from Sentry to Sentry-Static to complement the existing Sentry-Dynamic binary targets.

After this issue is resolve the list of targets should look like this:

• Sentry - compile-from-source via SPM
• SentrySPM - compile-from-source via SPM, but documented as discouraged/deprecated
• Sentry-Static - precompiled static Xcode Framework
• Sentry-Dynamic - precompiled static Xcode Framework

[linear-code]

COCOA-1416