Main reason -- to be able to compile Stub in Xcode without errors.
What was fixed:
## Cannot code sign because the target does not have an Info.plist file
Info.plist is now generated and included into xcode project.
## Undefined symbols for architecture arm64: "_main"
Stub `int main() {}` is now generated and included into xcode project.
## multiple `FrameworkName/FrameworkName.h` not found
Error while compiling pre-compiled header file where all framework are being referenced.
XCode doesn't seem to recognise single arch framework.
Changes where done:
- propagate XCFrameworks instead of its framework.
- clang modules are enabled now;
- not all frameworks have umbrella header with same name, e.g. `FrameworkName/FrameworkName.h`, logic added to look for Swift umbrellas as well.
- if umbrella header is not found -- framework is not included into pre-compiled headers.
To have manual control over the logic and to be able to add extra imports and filter out not required config was extended with following section:
```xml
<config>
    <tools>
        <ibx>
            <pch>
                <include>MyFramework/MyFramework.h</include>
                <include import="carview.php?tsp=true">MyModule</include>
                <filter exclude="carview.php?tsp=true">*Promises*</filter>
            </pch>
        </ibx>
    </tools>
</config>
```
`pch` section allow to include additional frameworks with `include` tags. if `import` attribute is specified -- `@import` will be used instead of `#import` (works for modules).
`filter` tag allows to exclude from pre-compiled header files reference to not required framework. For example `FBLPromises` causes following error:
> fatal error: module 'PromisesObjC' in AST file