Adds cocoapods for libraries.

Adds OCMockito and OCHamcrest libs.

Pods/OCHamcrest/Source/Core/Helpers/HCInvocationMatcher.m

@@ -0,0 +1,81 @@
+//  OCHamcrest by Jon Reid, https://qualitycoding.org/
+//  Copyright 2019 hamcrest.org. See LICENSE.txt
+
+#import "HCInvocationMatcher.h"
+
+
+@interface HCInvocationMatcher ()
+@property (nonatomic, strong) NSInvocation *invocation;
+@property (nonatomic, strong) id <HCMatcher> subMatcher;
+@end
+
+@implementation HCInvocationMatcher
+
+- (instancetype)initWithInvocation:(NSInvocation *)anInvocation matching:(id <HCMatcher>)aMatcher
+{
+    self = [super init];
+    if (self)
+    {
+        _invocation = anInvocation;
+        _subMatcher = aMatcher;
+    }
+    return self;
+}
+
+- (BOOL)matches:(nullable id)item
+{
+    if ([self invocationNotSupportedForItem:item])
+        return NO;
+
+    return [self.subMatcher matches:[self invokeOn:item]];
+}
+
+- (BOOL)invocationNotSupportedForItem:(id)item
+{
+    return ![item respondsToSelector:self.invocation.selector];
+}
+
+- (id)invokeOn:(id)item
+{
+    __unsafe_unretained id result = nil;
+    [self.invocation invokeWithTarget:item];
+    [self.invocation getReturnValue:&result];
+    return result;
+}
+
+- (void)describeMismatchOf:(nullable id)item to:(nullable id <HCDescription>)mismatchDescription
+{
+    if ([self invocationNotSupportedForItem:item])
+        [super describeMismatchOf:item to:mismatchDescription];
+    else
+    {
+        [self describeLongMismatchDescriptionOf:item to:mismatchDescription];
+        [self.subMatcher describeMismatchOf:[self invokeOn:item] to:mismatchDescription];
+    }
+}
+
+- (void)describeLongMismatchDescriptionOf:(id)item to:(id <HCDescription>)mismatchDescription
+{
+    if (!self.shortMismatchDescription)
+    {
+        [[[[mismatchDescription appendDescriptionOf:item]
+                                appendText:@" "]
+                                appendText:[self stringFromSelector]]
+                                appendText:@" "];
+    }
+}
+
+- (void)describeTo:(id <HCDescription>)description
+{
+    [[[[description appendText:@"an object with "]
+            appendText:[self stringFromSelector]]
+            appendText:@" "]
+            appendDescriptionOf:self.subMatcher];
+}
+
+- (NSString *)stringFromSelector
+{
+    return NSStringFromSelector(self.invocation.selector);
+}
+
+@end