Cleaning up lib-src

FileDialog goes into audacity/src/widgets and the mod-* directories go into
audacity/modules.

This leaves nothing in lib-src that isn't a 3rd-party libs or supporting
files.

modules/mod-nyq-bench/images/system-search-large.xpm

@@ -0,0 +1,120 @@
+/* XPM */
+static const char *system_search_large[] = {
+/* columns rows colors chars-per-pixel */
+"32 32 82 1",
+"  c #464646",
+". c #4B4B4B",
+"X c #565656",
+"o c #5A5A5A",
+"O c #656565",
+"+ c #6D6D6D",
+"@ c gray46",
+"# c #7A7A7A",
+"$ c #3366A5",
+"% c #3668A7",
+"& c #3A6AA7",
+"* c #3D6CA8",
+"= c #3E70AC",
+"- c #406FA9",
+"; c #4172AD",
+": c #4975AC",
+"> c #557CAF",
+", c #4575B0",
+"< c #4877B3",
+"1 c #4C7CB6",
+"2 c #5F85B3",
+"3 c #5988BE",
+"4 c #6387B2",
+"5 c #6388B3",
+"6 c #6B8CB4",
+"7 c #6F90B9",
+"8 c #7392B7",
+"9 c #7593BA",
+"0 c #7996BB",
+"q c #7C9ABD",
+"w c #5E8BC1",
+"e c #618FC3",
+"r c #6C96CA",
+"t c #6C9ACB",
+"y c #719ECE",
+"u c #709FD1",
+"i c #7CA6D1",
+"p c #868686",
+"a c #8A8A8A",
+"s c #939393",
+"d c #9B9B9B",
+"f c #A3A3A3",
+"g c #ABABAB",
+"h c gray70",
+"j c #BABABA",
+"k c #819EC3",
+"l c #85A1C5",
+"z c #83ABD4",
+"x c #8BB1D7",
+"c c #91B5DA",
+"v c #B8C2CD",
+"b c #BDC6D1",
+"n c #A3C2E0",
+"m c #ACC6E2",
+"M c #AFC9E3",
+"N c #BED3E9",
+"B c #C4C4C4",
+"V c #CCCCCC",
+"C c #C3CAD2",
+"Z c #C9CFD7",
+"A c #D2D2D2",
+"S c #D7D8DA",
+"D c #DCDCDC",
+"F c #C3D6EA",
+"G c #C6D9EC",
+"H c #CCDCEE",
+"J c #D5DCE5",
+"K c #D2DFEE",
+"L c #D1E0EF",
+"P c #D9E2ED",
+"I c #D5E2F1",
+"U c #DAE6F2",
+"Y c #DEE9F3",
+"T c #E3E3E3",
+"R c #E5E6E8",
+"E c #ECECEC",
+"W c #E3ECF5",
+"Q c #E8F0F7",
+"! c #EDF3F9",
+"~ c #F3F3F3",
+"^ c #FBFBFB",
+"/ c None",
+/* pixels */
+"////////////////////////////////",
+"//////////aaaaaa////////////////",
+"////////dAE^^^^Tja//////////////",
+"//////aS^~TTTDRE^Eha////////////",
+"/////s~~Dv4&$$&5b~^Ba///////////",
+"////aEES2$1ette1$5R^Ba//////////",
+"////A~D:=ymHUHNct=:E!g//////////",
+"///s^D6=zLWQWYIKmy;8^Sa/////////",
+"///BEC%yKWW!WWUIHxy&JEg/////////",
+"//aDT61nUYQQWWYIHiy19~Ba////////",
+"//aRD*eFIYWWWYUINyye-~Aa////////",
+"//aRS$tGLIUYWYUIcyyr$EDa////////",
+"//aTD$tFHIIUUUIM//yt$RDa////////",
+"//aTT*emFHKIUI////yw;TAp////////",
+"//aVR81zMNHG///////1qRjp////////",
+"///g~Z&yy//////////&JTd/////////",
+"///aT~0,u/////////;kEV#/////////",
+"////f~~>;r///////=5~Da+/////////",
+"////pj~~9$<3//3:$k~TRBsX////////",
+"/////ahE^Jk:%$:lPEDPjsfs ///////",
+"//////afAR~^^^~RDVaAggsff.//////",
+"////////afjVSAVjd#+sjggsffX/////",
+"//////////aaaaaa///X#jggsdfO ///",
+"//////////////////// +jhgddg@ //",
+"//////////////////////ohhgfhT# /",
+"/////////////EER///////.ghhDTB /",
+"////////////E~^~ES////// fADRj /",
+"///////////////////////// aABo//",
+"///////////////////////////  ///",
+"////////////////////////////////",
+"////////////////////////////////",
+"////////////////////////////////"
+};