Enhanced document compatibility with Bitcoin symbol for broader
financial documentation needs.
- Added `newunicodechar` package to support Unicode characters.
- Implemented `\DeclareUnicodeCharacter` command to define custom
Unicode characters.
- Defined `\bitcoinA` command to render the Bitcoin symbol using Unicode
20BF.
Signed-off-by: Glenn Y. Rolland <glenux@glenux.net>
Glenn Y. Rolland
7aabf1235e