latex2exp 0.5.0

• Update documentation to use the new raw strings introduced in R 4.0 (which lets one do away with the quoting of the backslash character; e.g. one can use TeX(r'($\alpha^\beta$)') rather than TeX('\\alpha^\\beta))
• Adds parameters bold and italic to TeX(). These can be used to make the entire expression bold or italic.
• Adds \phantom{} (PR)