Hidlize IBase; use IBase instead of IBinder.

* IBase is hidlized over hwbinder. GenericBinder
  is removed and Interface with name
  android.hidl.base@1.0::IBase is used instead.

* Removed AST::mImportedNamesForJava, because in Java,
  we always refer to a type with the full name. We don't
  import anything in the java file.

* IFoo.h now includes HidlSupport.h instead of
  HidlTransportSupport.h

Test: hidl_test
Test: hidl_test_java

Fix: 32756130
Fix: 33273293

Change-Id: I435ad7c68dea028a16252148b6f5778e3610b7cd
diff --git a/Coordinator.cpp b/Coordinator.cpp
index 57da8bb..284bbce 100644
--- a/Coordinator.cpp
+++ b/Coordinator.cpp
@@ -189,6 +189,10 @@
     return root;
 }
 
+std::string Coordinator::getPackageRootOption(const FQName &fqName) const {
+    return getPackageRoot(fqName) + ":" + getPackageRootPath(fqName);
+}
+
 std::string Coordinator::getPackagePath(
         const FQName &fqName, bool relative) const {