Single-quote-chars(') in paths (to textures) within *.scn file muzz be properly handled

[powerbroker]

When scene resource path contains single-quote char, attempt to render fails with idiotic "Wrong number of values in property" error message. E.g. with attached d8.scn d8.scn.txt it is:

RUNTIME ERROR: Wrong number of values in property: scene.textures.LPB_Bed_CurtainFrills_d.file

The single-quote is a valid file name character(in windozer at least). So, should be handled properly - as part of path value, but not as syntax element of *.scn file.