JVM IR: move jvmPhases to backend.jvm.entrypoint

This will be used for two purposes:
1) call lowerings and codegen separately from
   KotlinToJVMBytecodeCompiler to support cyclical module dependencies
   (KT-49575)
2) split lowerings and codegen into separate modules

compiler/cli/build.gradle.kts

@@ -12,7 +12,6 @@ dependencies {
     api(project(":compiler:backend-common"))
     api(project(":compiler:backend"))
     api(project(":compiler:backend.jvm"))
-    implementation(project(":compiler:backend.jvm.lower"))
     implementation(project(":compiler:backend.jvm.entrypoint"))
     api(project(":compiler:ir.backend.common"))
     api(project(":compiler:light-classes"))