Move everything under kotlin-native folder

I was forced to manually do update the following files, because otherwise
they would be ignored according .gitignore settings. Probably they
should be deleted from repo.

Interop/.idea/compiler.xml
Interop/.idea/gradle.xml
Interop/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_runtime_1_0_3.xml
Interop/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_0_3.xml
Interop/.idea/modules.xml
Interop/.idea/modules/Indexer/Indexer.iml
Interop/.idea/modules/Runtime/Runtime.iml
Interop/.idea/modules/StubGenerator/StubGenerator.iml
backend.native/backend.native.iml
backend.native/bc.frontend/bc.frontend.iml
backend.native/cli.bc/cli.bc.iml
backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt
backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt
backend.native/tests/link/lib/foo.kt
backend.native/tests/link/lib/foo2.kt
backend.native/tests/teamcity-test.property

kotlin-native/samples/python_extension/build.bat

@@ -0,0 +1,15 @@
+setlocal
+set DIR=.
+
+if defined KONAN_HOME (
+    set "PATH=%KONAN_HOME%\bin;%PATH%"
+) else (
+    set "PATH=..\..\dist\bin;..\..\bin;%PATH%"
+)
+kotlinc-native -p dynamic src/main/kotlin/Server.kt -o server
+
+rem Prepare MSVC build environment, and .lib file for linking with our .dll.
+SET VS90COMNTOOLS=%VS140COMNTOOLS%
+\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\lib.exe" /def:server.def /out:server.lib  /machine:X64
+
+python src/main/python/setup.py install