Adds cocoapods for libraries.

Adds OCMockito and OCHamcrest libs.

iOS/Pods/OCHamcrest/Source/Library/Collection/HCIsCollectionOnlyContaining.m

@@ -0,0 +1,34 @@
+//  OCHamcrest by Jon Reid, https://qualitycoding.org/
+//  Copyright 2019 hamcrest.org. See LICENSE.txt
+
+#import "HCIsCollectionOnlyContaining.h"
+
+#import "HCAnyOf.h"
+#import "HCCollect.h"
+
+
+@implementation HCIsCollectionOnlyContaining
+
+- (void)describeTo:(id <HCDescription>)description
+{
+    [[description appendText:@"a collection containing items matching "]
+                  appendDescriptionOf:self.matcher];
+}
+
+@end
+
+
+id HC_onlyContainsIn(NSArray *itemMatchers)
+{
+    return [[HCIsCollectionOnlyContaining alloc] initWithMatcher:HC_anyOfIn(itemMatchers)];
+}
+
+id HC_onlyContains(id itemMatchers, ...)
+{
+    va_list args;
+    va_start(args, itemMatchers);
+    NSArray *array = HCCollectItems(itemMatchers, args);
+    va_end(args);
+
+    return HC_onlyContainsIn(array);
+}