LaTex symbols

[Former user]

It would be nice to replace text constant values (like Infinity, GoldenRatio...) with their symbols when converting to tex form.

[Axel Kramer]

Commited: https://bitbucket.org/axelclk/symja_android_library/commits/13eab30e091e1d09a5ed7e17629357ce1c156f50

for adding constant objects to TeX output

[Axel Kramer]

Please open new issue if you have problems with other TeX symbols.