2.1.0

Better output of non-printable symbols.

2.0.0

• Frequencies are better formatted as a table.
• In verbose mode add better marks about the current symbol.
• Set the input stream as source either with the - as file argument or not file argument at all.
• Fix when interrupting the program with Ctrl+C the frequency output was unsorted.
• Fix pointer truncate bug.
• Better error handling and error messages.
• A lot of code refactor and formatting. Replace tabs with 4 spaces in source code files.
• Remove redundant freqlist.freqs.
• CTest configuration and improved tests.
• Add CI setup on Github Actions.

1.2.0

• Print symbol's hexadecimal code with '0' padding instead of blank ' ' space.
• In verbose mode the symbol found is highlighted in the table.
• Minor code refactor.