Don't confirm connection

Don't send confirmation message to client if the connection is established. If such a thing is needed, it can be implemented manually using workOnEstablished.

Known issues:

• #21

Set worker using setter

New structure: Worker methods are no longer passed to constructor. Each worker method has now its own setter

Connection established worker

New feature: A new worker can be passed to be executed when a new connection to a client is established

Version 2.0

• Beside extracting separate messages using a delimiter, the incoming stream can now also be forwarded to any out stream
• The TcpServer and TlsServer classes are no longer abstract, so an instance can be created directly
• Worker methods can now be defined outside and passed to constructor (Or nullptr if nothing shall be done at all)

Pipe error fix

Pipe error (#12) is now fixed and source code is refactored for better readability.

Security and stability improvements

Increased security by forcing TLSv1.3 with elliptic curve generated keys.
Improved connection establishing process (Only works with NetworkClient >= v1.2.0)
New feature: Maximum message size (for sending and receiving) can now be defined.
Some stability improvements.

Known issues:
- Pipe error: #7

Improved robustness against high work load

Improved dynamic memory allocation to have better performance at high work load and a long-running time.

Known issues:

• Pipe error: #7

Stability hotfix

Fixed issue that causes a system crash under load

Improved message framing and sizing

Improved message framing and sizing:

• The message size can be set for incoming and outgoing messages
• Performance and reliability for message framing in continuous data stream are now improved

Stability improvements for long running time

This release contains some improvements to have more stable runnable over a long running time