Update examples with HB2-beta.5

[tib]

• updated all the examples (except ios-image-server)
• Package.swift unification (use 5.9, remove unsafe flags, dep versions, etc.)
• remove git unnecessary submodule from auth-srp
• add other useful scripts for checks & format support

[adam-fowler]

Some of this seems to be personal preference (removing .git from dependencies, adding a Makefile.
Files have also been reformatted because they have been formatted with swift-format.
I would like to do my own investigation with "-cross-module-optimization" before removing it. So far I haven't seen anything significant to indicate it should be removed, apart from one forum post where tests ran slower.
+1 to Using HTTPClient.shared
+1 to updating Package.swift where required
+1 to fixing compile errors
Can we remove the additional scripts for the moment and we can discuss in a separate PR what is needed there
The updated todos-fluent is cool, but a separate PR would be preferable

[adam-fowler]

@tib not sure if this is related to your changes, but it looks like the mongo example isn't working. It might just be because it has no tests. If you could add an empty test target that'd be great.

[tib]

Sure thing, I can do that, also should I separate the Fluent example in an other PR or is it fine if it stays in this one?

[adam-fowler]

Nah you can leave it here

[adam-fowler]

👍