Add implementation for UnitConverter and its related classes (#441)

Author: adellibovi

Foundation.xcodeproj/project.pbxproj

@@ -279,6 +279,7 @@
 		7900433B1CACD33E00ECCBF1 /* TestNSCompoundPredicate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 790043391CACD33E00ECCBF1 /* TestNSCompoundPredicate.swift */; };
 		7900433C1CACD33E00ECCBF1 /* TestNSPredicate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7900433A1CACD33E00ECCBF1 /* TestNSPredicate.swift */; };
 		AE35A1861CBAC85E0042DB84 /* SwiftFoundation.h in Headers */ = {isa = PBXBuildFile; fileRef = AE35A1851CBAC85E0042DB84 /* SwiftFoundation.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		CC5249C01D341D23007CB54D /* TestUnitConverter.swift in Sources */ = {isa = PBXBuildFile; fileRef = CC5249BF1D341D23007CB54D /* TestUnitConverter.swift */; };
 		CE19A88C1C23AA2300B4CB6A /* NSStringTestData.txt in Resources */ = {isa = PBXBuildFile; fileRef = CE19A88B1C23AA2300B4CB6A /* NSStringTestData.txt */; };
 		D31302011C30CEA900295652 /* NSConcreteValue.swift in Sources */ = {isa = PBXBuildFile; fileRef = D31302001C30CEA900295652 /* NSConcreteValue.swift */; };
 		D370696E1C394FBF00295652 /* NSKeyedUnarchiver-RangeTest.plist in Resources */ = {isa = PBXBuildFile; fileRef = D370696D1C394FBF00295652 /* NSKeyedUnarchiver-RangeTest.plist */; };
@@ -681,6 +682,7 @@
 		AE35A1851CBAC85E0042DB84 /* SwiftFoundation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SwiftFoundation.h; sourceTree = "<group>"; };
 		C2A9D75B1C15C08B00993803 /* TestNSUUID.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSUUID.swift; sourceTree = "<group>"; };
 		C93559281C12C49F009FD6A9 /* TestNSAffineTransform.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSAffineTransform.swift; sourceTree = "<group>"; };
+		CC5249BF1D341D23007CB54D /* TestUnitConverter.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestUnitConverter.swift; sourceTree = "<group>"; };
 		CE19A88B1C23AA2300B4CB6A /* NSStringTestData.txt */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = NSStringTestData.txt; sourceTree = "<group>"; };
 		D3047AEB1C38BC3300295652 /* TestNSValue.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestNSValue.swift; sourceTree = "<group>"; };
 		D31302001C30CEA900295652 /* NSConcreteValue.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NSConcreteValue.swift; sourceTree = "<group>"; };
@@ -1272,6 +1274,7 @@
 				D3047AEB1C38BC3300295652 /* TestNSValue.swift */,
 				5B6F17951C48631C00935030 /* TestNSXMLDocument.swift */,
 				5B40F9F11C125187000E72E3 /* TestNSXMLParser.swift */,
+				CC5249BF1D341D23007CB54D /* TestUnitConverter.swift */,
 				5B6F17961C48631C00935030 /* TestUtils.swift */,
 			);
 			name = Tests;
@@ -2061,6 +2064,7 @@
 				5B13B3471C582D4C00651CE2 /* TestNSThread.swift in Sources */,
 				5B13B32E1C582D4C00651CE2 /* TestNSFileManager.swift in Sources */,
 				5B13B3381C582D4C00651CE2 /* TestNSNotificationQueue.swift in Sources */,
+				CC5249C01D341D23007CB54D /* TestUnitConverter.swift in Sources */,
 				5B13B3331C582D4C00651CE2 /* TestNSJSONSerialization.swift in Sources */,
 				5B13B33C1C582D4C00651CE2 /* TestNSOrderedSet.swift in Sources */,
 				5B13B34A1C582D4C00651CE2 /* TestNSURL.swift in Sources */,