Fix tns run ios on case sensitive file system (#3045)

In case the file system is case sensitive, `tns run ios` command fails to execute as the `entitlements` file from `app/App_Resources/iOS/` (in case there's such file) is copied to `<project dir>/platforms/ios` dir (the name of iOS dir inside platforms  is lowercased). However the entitlements service expects it to be inside `<project dir>/platforms/iOS` dir. On case sensitive file systems we fail with ENOENT error, as there's no iOS directory. Fix this inside `entitlements service` to use lowercased value. This way it will successfully find the entitlements file inside platforms dir.

Author: rosen-vladimirov

lib/services/ios-entitlements-service.ts

@@ -22,7 +22,7 @@ export class IOSEntitlementsService {
 	}
 
 	public getPlatformsEntitlementsPath(projectData: IProjectData) : string {
-		return path.join(projectData.platformsDir, this.$devicePlatformsConstants.iOS,
+		return path.join(projectData.platformsDir, this.$devicePlatformsConstants.iOS.toLowerCase(),
 			projectData.projectName, projectData.projectName + ".entitlements");
 	}
 	public getPlatformsEntitlementsRelativePath(projectData: IProjectData): string {

test/ios-entitlements-service.ts

@@ -64,6 +64,12 @@ describe("IOSEntitlements Service Tests", () => {
 			let actual = iOSEntitlementsService.getPlatformsEntitlementsRelativePath(projectData);
 			assert.equal(actual, expected);
 		});
+
+		it("Ensure full path to entitlements in platforms dir is correct", () => {
+			const expected = path.join(projectData.platformsDir, "ios", "testApp", "testApp.entitlements");
+			const actual = iOSEntitlementsService.getPlatformsEntitlementsPath(projectData);
+			assert.equal(actual, expected);
+		});
 	});
 
 	describe("Merge", () => {