VR3 V3.72 Adds Lua as a Supported Language

[tbp1...@gmail.com]

VR3 now supports Lua.  To run Lua trees, you need to have a version of Lua installed. The as with other non-Python languages, you need to add it to the [executables] section of  the config file ~/.leo/vr3/vr3_config.ini.  My ini file currently looks like this (lines may be wrapped by Google Groups):

[executables]
julia = C:\users\tom\appdata\Local\Programs\Julia-1.6.1\bin\julia.exe
javascript = c:\usr\graalvm-ce-java11-21.3.0\languages\js\bin\js.exe
lua = C:\Program Files (x86)\Lua\5.1\lua.exe
sql = c:\Program Files\MySQL\MySQL Server 8.0\bin\mysql.exe