Collaborative manage track

Description

* Cloud Firestore + Storage utility.
* Please complete the free google firebase account creation before use.
Installation teaching: http://shioulo.no-ip.org/app/PorjectTeamFirebase
step:
1. Apply for an account
2. Create a project, enter the project to get the google-services.json file
3. Create an account in the project ()
4. Enable the ** Cloud Firestore ** function
5. Turn on the storage function

Function introduction:
This is an integrated app that combines group project and problem tracking control. It does not need to set up a host to store data, files and synchronization directly through Google Firebase.

1. Three-level management for a single project, first-level grouping, second-level tasks, and third-level execution records.

2. Group project: A number of people can jointly execute a project, and the division of labor records the execution progress and status.

3. Issue tracking: Through a variety of state set the processor to perform the task assigned to perform problem-solving process.

4. Data transfer notification to project members.