Merge branch 'function-forum-post' into 'master'

feat: Create post function

See merge request !162

src/service/firestore/forum/createPost.ts

+import firebase from "firebase";
+import { getEnv } from "../../../helpers/getEnv";
+
+type createPostParam = {
+  ecosystemId: string;
+  userId: string;
+  title: string;
+  content: string;
+};
+
+export const createPost = async (post: createPostParam) => {
+  const db = firebase.firestore();
+  await db.collection("threads_" + getEnv()).add({
+    ...post,
+    commentCount: 0,
+    likeCount: 0,
+    pic: "",
+    timestamp: firebase.firestore.FieldValue.serverTimestamp(),
+  });
+};