Add lib/iOS folder to framework search paths

Fixes NativeScript/nativescript-cli#777

Author: Fatme Havaluova

build/project-template/__PROJECT_NAME__.xcodeproj/project.pbxproj

@@ -426,6 +426,7 @@
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(PROJECT_DIR)\"",
+					"\"$(PROJECT_DIR)/../../lib/iOS\"",
 				);
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "__PROJECT_NAME__/__PROJECT_NAME__-Prefix.pch";
@@ -461,6 +462,7 @@
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(PROJECT_DIR)\"",
+					"\"$(PROJECT_DIR)/../../lib/iOS\"",
 				);
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "__PROJECT_NAME__/__PROJECT_NAME__-Prefix.pch";