Further RNPM integration

Summary:
This commit removes `rnpm` folder that we left during initial merge to keep the diff cleaner. The `core`, `link` and `install` have now the same directory structure as any other command to make development more natural for all of us.

From most notable differences:
1) the `src` folder is now gone. The new structure should make it easier for people to work with the stuff and also move us closer to 100% rnpm integration,
2) There's also no `package.json` present in any of the `rnpm` packages, since they are no longer standalone modules,
3) There's no `bugs.url` in link.js since main package.json of React doesn't specify it. Decided to hardcode it to facebook/react-native since it's really unlikely to change. If one would prefer to use pkg.bugs.url as before, a separate PR modifying package.json should be sent.
Closes https://github.com/facebook/react-native/pull/9509

Differential Revision: D3751115

fbshipit-source-id: 74ae8330f7634df0887ad676808f47eee4b8de85

local-cli/link/ios/registerNativeModule.js

@@ -0,0 +1,56 @@
+const xcode = require('xcode');
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+
+const addToHeaderSearchPaths = require('./addToHeaderSearchPaths');
+const getHeadersInFolder = require('./getHeadersInFolder');
+const getHeaderSearchPath = require('./getHeaderSearchPath');
+const getProducts = require('./getProducts');
+const createGroupWithMessage = require('./createGroupWithMessage');
+const addFileToProject = require('./addFileToProject');
+const addProjectToLibraries = require('./addProjectToLibraries');
+const addSharedLibraries = require('./addSharedLibraries');
+const isEmpty = require('lodash').isEmpty;
+const getGroup = require('./getGroup');
+
+/**
+ * Register native module IOS adds given dependency to project by adding
+ * its xcodeproj to project libraries as well as attaching static library
+ * to the first target (the main one)
+ *
+ * If library is already linked, this action is a no-op.
+ */
+module.exports = function registerNativeModuleIOS(dependencyConfig, projectConfig) {
+  const project = xcode.project(projectConfig.pbxprojPath).parseSync();
+  const dependencyProject = xcode.project(dependencyConfig.pbxprojPath).parseSync();
+
+  const libraries = createGroupWithMessage(project, projectConfig.libraryFolder);
+  const file = addFileToProject(
+    project,
+    path.relative(projectConfig.sourceDir, dependencyConfig.projectPath)
+  );
+
+  addProjectToLibraries(libraries, file);
+
+  getProducts(dependencyProject).forEach(product => {
+    project.addStaticLibrary(product, {
+      target: project.getFirstTarget().uuid,
+    });
+  });
+
+  addSharedLibraries(project, dependencyConfig.sharedLibraries);
+
+  const headers = getHeadersInFolder(dependencyConfig.folder);
+  if (!isEmpty(headers)) {
+    addToHeaderSearchPaths(
+      project,
+      getHeaderSearchPath(projectConfig.sourceDir, headers)
+    );
+  }
+
+  fs.writeFileSync(
+    projectConfig.pbxprojPath,
+    project.writeSync()
+  );
+};