Clang tidy and static analysis

Same as the previous, but ran static analysis, and it picked up a few minor issues.

Handles very large csv files

The version handles very large CSV files. It also has a simple class to use for C++ users.
The CMake file builds a C and C++ linked test file. These test programs are examples on how to use the library, and allows an accuracy check as they print out the imported CSV file totally recreated.

Correctly read Excel generated csv files

Correctly read Excel generated csv files. Excel uses special characters for start and end double quotes

Version0.3

This release is close to supporting full CSV RFC 4180
It supports separators inside double quotes, and handles multi line cells

Version0.2

After some cleaning up of the coder

Initial Version

Initial Version getting GitHub setup is ... painfull ...