Adds cocoapods for libraries.

Adds OCMockito and OCHamcrest libs.

Pods/OCHamcrest/Source/Core/HCDiagnosingMatcher.h

@@ -0,0 +1,19 @@
+//  OCHamcrest by Jon Reid, https://qualitycoding.org/
+//  Copyright 2019 hamcrest.org. See LICENSE.txt
+
+#import <OCHamcrest/HCBaseMatcher.h>
+
+
+NS_ASSUME_NONNULL_BEGIN
+
+/*!
+ * @abstract Base class for matchers that generate mismatch descriptions during the matching.
+ * @discussion Some matching algorithms have several "no match" paths. It helps to make the mismatch
+ * description as precise as possible, but we don't want to have to repeat the matching logic to do
+ * so. For such matchers, subclass HCDiagnosingMatcher and implement HCMatcher's
+ * <code>-matches:describingMismatchTo:</code>.
+*/
+@interface HCDiagnosingMatcher : HCBaseMatcher
+@end
+
+NS_ASSUME_NONNULL_END