Fix: Changed Bundle Identifier to include domain prefix

Upon building for an iOS device, I discovered that the default Bundle Identifier of `SCNViewController` didn't work— Xcode spit out an error of _“App installation failed: This application's bundle identifier does not match its code signing identifier.”_  After digging out in the device logs, I discovered that the issue was indeed this lib's bundle ident not being an Apple-Developer-Center-registered reverse-URL.

* Changed `PRODUCT_BUNDLE_IDENTIFIER` build setting to `com.capnslipp.$(PRODUCT_NAME)`— _resulting in a built bundle-ident of `com.capnslipp.SCNViewController`._

SCNViewController.xcodeproj/project.pbxproj

@@ -141,7 +141,7 @@
 				MODULEMAP_FILE = module.modulemap;
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
-				PRODUCT_BUNDLE_IDENTIFIER = SCNViewController;
+				PRODUCT_BUNDLE_IDENTIFIER = "com.capnslipp.$(PRODUCT_NAME)";
 				PRODUCT_MODULE_NAME = "$(TARGET_NAME:c99extidentifier)";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				TARGET_NAME = SCNViewController;
@@ -162,7 +162,7 @@
 				MODULEMAP_FILE = module.modulemap;
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
-				PRODUCT_BUNDLE_IDENTIFIER = SCNViewController;
+				PRODUCT_BUNDLE_IDENTIFIER = "com.capnslipp.$(PRODUCT_NAME)";
 				PRODUCT_MODULE_NAME = "$(TARGET_NAME:c99extidentifier)";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				TARGET_NAME = SCNViewController;