Rename to linkahead-octavelib

Summary

Related to caosdb-cpplib#94 (closed)

Filesystem

• folder names
• .cpp/.h file names
• .m files
• .texi files

Source/Tests

• References to folder/file names in source/headers
• Variable names
• Licenses (L-GPL): "This file is a part of the CaosDB Project."

CMake files

• Project name
• library names
• executable names
• namespace
• variable names
• Makefile: conan settings

Docs

• Licenses
• Project Name
• Add sections update renaming to README and CHANGELOG