Fix boolean table values in options table passed to luaRunFile

[nmarks99]

luaMacrosFromTable in luaEpics.cpp tries converting each value in the table to a string, regardless of its actual type and this fails for booleans (result will be NULL)

lua/luaApp/src/luaEpics.cpp

Line 655 in ada11c0

const char* val = lua_tostring(state, -1);

Because of this, passing {async = true} as an options table to luaRunFile fails silently (but {async = 1} works) as described in the docs here:

lua/docs/using-lua-shell.md

Line 149 in ada11c0

luaRunFile("tick.lua", nil, {async=true}) -- background thread

This commit fixes this by explicitly checking the type and manually converting boolean true to "true" and false to "false". This allows us to pass {async = true} as the options table for luaRunFile as advertised in the documentation.

Assisted-by: GPT-5.6 Sol