Adds cocoapods for libraries.

Adds OCMockito and OCHamcrest libs.

Pods/OCHamcrest/Source/Library/Collection/HCIsEmptyCollection.m

@@ -0,0 +1,33 @@
+//  OCHamcrest by Jon Reid, https://qualitycoding.org/
+//  Copyright 2019 hamcrest.org. See LICENSE.txt
+
+#import "HCIsEmptyCollection.h"
+
+#import "HCIsEqual.h"
+
+
+@implementation HCIsEmptyCollection
+
+- (instancetype)init
+{
+    self = [super initWithMatcher:HC_equalTo(@0)];
+    return self;
+}
+
+- (void)describeMismatchOf:(nullable id)item to:(nullable id <HCDescription>)mismatchDescription
+{
+    [[mismatchDescription appendText:@"was "] appendDescriptionOf:item];
+}
+
+- (void)describeTo:(id <HCDescription>)description
+{
+    [description appendText:@"empty collection"];
+}
+
+@end
+
+
+FOUNDATION_EXPORT id HC_isEmpty(void)
+{
+    return [[HCIsEmptyCollection alloc] init];
+}