Move context classpath utils from script-util to scripting-jvm

since it is the right place to have it in the new structure.
Solves the problem that script-util classes not found then script
definition with context classpath is loaded by the scripting compiler
plugin, since script-util is not packed into embeddable plugin.
The old context utils are deprecated and in fact wrap the new utils.
#KT-26828 fixed (in fact - partially, see another related commit)

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDefinitionsManager.kt

@@ -39,7 +39,6 @@ import org.jetbrains.kotlin.idea.caches.project.getScriptRelatedModuleInfo
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil.isInContent
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.script.*
-import org.jetbrains.kotlin.script.util.scriptCompilationClasspathFromContextOrStlib
 import org.jetbrains.kotlin.scripting.compiler.plugin.KotlinScriptDefinitionAdapterFromNewAPI
 import org.jetbrains.kotlin.utils.PathUtil
 import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
@@ -58,6 +57,7 @@ import kotlin.script.experimental.host.configurationDependencies
 import kotlin.script.experimental.host.createCompilationConfigurationFromTemplate
 import kotlin.script.experimental.jvm.JvmDependency
 import kotlin.script.experimental.jvm.defaultJvmScriptingHostConfiguration
+import kotlin.script.experimental.jvm.util.scriptCompilationClasspathFromContextOrStlib
 import kotlin.script.experimental.location.ScriptExpectedLocation
 import kotlin.script.templates.standard.ScriptTemplateWithArgs