Fix beast::http::headers move members
Cleanups:
* Remove obsolete string formatting function
* Remove unused ADDRESS macro
* Re-scope functions
Inject JobQueue in NetworkOPs
Set version to 0.26.4-alpha
Refactor STAmount:
* Remove unused functions
* Remove unused constructor
* Use delegating constructors
* Mark some observers deprecated
* Clean up declaration parameter names
* Add checked and unchecked constructors
* De-inline unnecessary inlined functions
* Reorder and regroup members into sections
* Move globals from the unity file to the .cpp
* Change some member functions to be free functions
* Put implementation in one .cpp and the test in another .cpp

Remove unused STAmount constructor and delegate two others No change in functionality.
Add missing includes and tidy up
Clean up and restructure sources
Remove unused macros, config variables, and file