Added a basic Info.plist file (#37)

It prevents the following error while trying to validate or upload a project using this framework to the App Store via iTunes Connect

iTunes Store operation failed.
This bundle path.to/Frameworks/HTMLEntities.framework is invalid. The Info.plist file is missing the required key: CFBundleVersion.

Author: remuslazar

HTMLEntities-Carthage.xcodeproj/project.pbxproj

@@ -27,6 +27,7 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		D8835F911F69ABA100694AD9 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		OBJ_10 /* ParseError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ParseError.swift; sourceTree = "<group>"; };
 		OBJ_11 /* String+HTMLEntities.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "String+HTMLEntities.swift"; sourceTree = "<group>"; };
 		OBJ_12 /* Utilities.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Utilities.swift; sourceTree = "<group>"; };
@@ -58,6 +59,14 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		D8835F921F69ABD800694AD9 /* Supporting Files */ = {
+			isa = PBXGroup;
+			children = (
+				D8835F911F69ABA100694AD9 /* Info.plist */,
+			);
+			name = "Supporting Files";
+			sourceTree = "<group>";
+		};
 		OBJ_13 /* Tests */ = {
 			isa = PBXGroup;
 			children = (
@@ -91,6 +100,7 @@
 				OBJ_6 /* Package.swift */,
 				OBJ_7 /* Sources */,
 				OBJ_13 /* Tests */,
+				D8835F921F69ABD800694AD9 /* Supporting Files */,
 				OBJ_17 /* docs */,
 				OBJ_18 /* Products */,
 			);
@@ -214,6 +224,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				CURRENT_PROJECT_VERSION = 1;
 				ENABLE_TESTABILITY = YES;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -236,6 +247,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				CURRENT_PROJECT_VERSION = 1;
 				ENABLE_TESTABILITY = YES;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -260,10 +272,12 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				COMBINE_HIDPI_IMAGES = YES;
 				COPY_PHASE_STRIP = NO;
+				CURRENT_PROJECT_VERSION = 1;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				ENABLE_NS_ASSERTIONS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
+				INFOPLIST_FILE = Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				ONLY_ACTIVE_ARCH = YES;
@@ -320,9 +334,11 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				COMBINE_HIDPI_IMAGES = YES;
 				COPY_PHASE_STRIP = YES;
+				CURRENT_PROJECT_VERSION = 1;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				GCC_OPTIMIZATION_LEVEL = s;
+				INFOPLIST_FILE = Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				OTHER_SWIFT_FLAGS = "-DXcode";

Info.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+    <dict>
+        <key>CFBundleVersion</key>
+        <string>$(CURRENT_PROJECT_VERSION)</string>
+    </dict>
+</plist>