Refactor scripting properties:

- flatten the structure
- add some parameters
- replace iterables with lists
- renaming all scope objects uniformily
also:
- fix passing and usage of script sources
- renamings and other minor improvements

libraries/examples/scripting/jvm-simple-script/host/src/org/jetbrains/kotlin/script/examples/jvm/simple/host/host.kt

@@ -15,9 +15,9 @@ import kotlin.script.experimental.jvm.*
 import kotlin.script.experimental.jvmhost.impl.KJVMCompilerImpl
 import kotlin.script.experimental.misc.*
 
-val myJvmConfigParams = jvmJavaHomeParams + with(ScriptCompileConfigurationParams) {
+val myJvmConfigParams = jvmJavaHomeParams + with(ScriptCompileConfigurationProperties) {
     listOf(
-        scriptSignature to ScriptSignature(MyScript::class, ProvidedDeclarations()),
+        baseClass<MyScript>(),
         dependencies(JvmDependency(scriptCompilationClasspathFromContext("script" /* script library jar name */)))
     )
 }