File Upload

**Description:** Ability to upload Files to the Spacecraft. With a button to abort the upload.
**Requirement:** [00210, 00215](/OSSAT%20Mercury%20GS%20Specification_08.pdf)
**Demo 1:** 
1. Upload file 
2. Observe file displaying in Terminal program. 

**Demo 2:**
1. Upload file. 
2. Press abort function before upload completes. 
3. Observe Upload abort.