Provide an extended DSL for final native binaries

In 1.3.0 only basic settings for final native binaries (e.g.
executables or frameworks) are available. They allow a user to
specify what kinds of binaries should be produced from one or another
compilation but they don't allow specifying different options for
different binaries or creating more than 2 (debug and release)
binaries of the same kind (e.g. executable) from the same
compilation. Also link tasks for these binaries are created after
project evaluation thus they are inaccessible for a user outside
of an afterEvaluate block.

This patch adds an extended binary DSL allowing a user to declare
binaries independently from compilations and to specify different
options (e.g. linker arguments) for different binaries. Also
link tasks for binaries declared in this DSL are created at a
configuration time so user can access them outside of an
afterEvaluate block.

Also this patch adds creating run tasks for all executables
declared in the buildscript (KT-28106)

Initial DSL methods for binaries declaration are still supported.

Kotlin DSL example is the following:

kotlin {
    macosX64 {
        binaries {
            // Create debug and release executable with
            // a name prefix 'Foo'.
            // Two domain objects will be created:
            // fooDebugExecutable and fooReleaseExecutable
            executable("Foo", listOf(RELEASE, DEBUG)) {
                compilation = compilations["foo"]
                entryPoint = "foo.main"
                linkerOpts.add("-Llib/path")
                println(runTask.name)
            }

            // Name prefix and build types are optional.
            // debugFramework and releaseFramework are created here.
            framework()
        }
    }
}

libraries/tools/kotlin-gradle-plugin-dsl-codegen/build.gradle.kts

@@ -15,8 +15,13 @@ val generateMppTargetContainerWithPresets by generator(
     sourceSets["main"]
 )
 
-generateMppTargetContainerWithPresets.run {
-    systemProperty(
+val generateAbstractBinaryContainer by generator(
+    "org.jetbrains.kotlin.generators.gradle.dsl.MppNativeBinaryDSLCodegenKt",
+    sourceSets["main"]
+)
+
+listOf(generateMppTargetContainerWithPresets, generateAbstractBinaryContainer).forEach {
+    it.systemProperty(
         "org.jetbrains.kotlin.generators.gradle.dsl.outputSourceRoot",
         project(":kotlin-gradle-plugin").projectDir.resolve("src/main/kotlin").absolutePath
     )
@@ -25,4 +30,4 @@ generateMppTargetContainerWithPresets.run {
 // Workaround: 'java -jar' refuses to read the original dotted filename on Windows, 'Unable to access jarFile org.jetbrains.kotlin....jar'
 tasks.named<Jar>(generateMppTargetContainerWithPresets.name + "WriteClassPath").configure {
     archiveName = generateMppTargetContainerWithPresets.name
-}
+}