Remove GitHub Actions CI after moving to SourceHut

Version 1.0.1

worker.c: don't overwrite the last byte in pathCpy

Although I'm taking care of the null byte later, this silences a compiler warning introduced with GCC 8.

GitHub Actions: update actions/checkout to v3

Fix compile error for WorkerList

Server: fix cleanup prodecure for sockets

Fix makefile

Seems like I forgot to track some headers

Bump version to 1.0.0

Don't know yet if this is the final commit for the first stable 
version...

Better console output at server startup

Client fixes. When will those bugs stop appearing?

- Initialize timeProgress to avoid an unexpected ETA in the first second 
messing up the console output.
- While the status is printed, start error messages in a new line.
- Fix recv usage in esftpClient.c (equal to recvExact.c)

Write a proper README

Faster forced shutdown

Print ETA as unsigned int

Add default value for help option

Behavior was undefined for now. Sometimes, this led to an unwanted 
output of the help command.

Fix parsing of items

Only MAX_ITEMS -1 were allowed. Should be fixed now.

Fix segmentation fault

Cause: itemsLen was not initialized
Later, items at index itemsLen were accessed

Create directories at install if not existing

Remove unnecessary strlen

Add help option to client and server

Fix and update makefile install and add uninstall

Also add this to the GitHub Actions CI