Go 1.19 go.mod and minor updates.

Updated go.mod to Go 1.19 and had minor updates to fix typo in package name and small README changes.

Version 1.1

sandfly-entropyscan has been updated to be able to scan all running processes on Linux to find packed or encrypted binaries running. Also includes previous features to scan an individual file or entire directories automatically. Includes new feature to customize delimiter in CSV output.