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/edit-cut-small.xpm

@@ -0,0 +1,110 @@
+/* XPM */
+static const char *edit_cut_small[] = {
+/* columns rows colors chars-per-pixel */
+"16 16 88 1",
+"  c #A60101",
+". c #A60202",
+"X c #A40502",
+"o c #A60606",
+"O c #A70606",
+"+ c #A80303",
+"@ c #A80403",
+"# c #A80606",
+"$ c #A80707",
+"% c #A90707",
+"& c #AA0808",
+"* c #AA0909",
+"= c #A90A0A",
+"- c #A90B0B",
+"; c #AA0B0B",
+": c #AA0C0C",
+"> c #AA0D0D",
+", c #AB0D0D",
+"< c #AA0E0E",
+"1 c #B50B0B",
+"2 c #B70F0E",
+"3 c #B80D0D",
+"4 c #AB1010",
+"5 c #AB1111",
+"6 c #AB1313",
+"7 c #AB1414",
+"8 c #AB1616",
+"9 c #AD1717",
+"0 c #AE1818",
+"q c #9C2F2C",
+"w c #C01513",
+"e c #C01514",
+"r c #C71A19",
+"t c #C91A1A",
+"y c #CA1B1A",
+"u c #CB1F1F",
+"i c #CD1D1C",
+"p c #CD1D1D",
+"a c #CE1D1D",
+"s c #CF1D1D",
+"d c #CE1E1E",
+"f c #D01F1F",
+"g c #D11F1F",
+"h c #D12020",
+"j c #D22020",
+"k c #D32121",
+"l c #D42222",
+"z c #D52323",
+"x c #D62323",
+"c c #DB2727",
+"v c #A34A45",
+"b c #898984",
+"n c #8A8C87",
+"m c #8B8D88",
+"M c #8C8E89",
+"N c #8D8F8A",
+"B c #8E908B",
+"V c #8F918C",
+"C c #90918D",
+"Z c #91938E",
+"A c #92948F",
+"S c #939590",
+"D c #9A9C97",
+"F c #9FA09C",
+"G c #A8A9A5",
+"H c #AAACA7",
+"J c #AEAFAB",
+"K c #B3B2AF",
+"L c #B3B5B0",
+"P c #B5B6B2",
+"I c #B5B6B3",
+"U c #B6B8B3",
+"Y c #B8BAB5",
+"T c #BABBB7",
+"R c #C5C6C3",
+"E c #C6C8C3",
+"W c #CCCEC9",
+"Q c #CDCECB",
+"! c #D2D3D0",
+"~ c #D2D4D0",
+"^ c #DBDCD9",
+"/ c #E1E1DF",
+"( c #E7E8E6",
+") c #EFF0EF",
+"_ c #F5F6F5",
+"` c #F7F7F6",
+"' c gray97",
+"] c None",
+/* pixels */
+"]]]]NS]]]]mV]]]]",
+"]]]B_n]]]]C!V]]]",
+"]]]m~)A]]]HEN]]]",
+"]]]NP_m]]BWJm]]]",
+"]]]]m^_VNUWm]]]]",
+"]]]]NP_mDPTm]]]]",
+"]]]]]m/_DHm]]]]]",
+"]]]]]NT(HNn]]]]]",
+"]]]]]]bRLq]]]]]]",
+"]]]]07Ov.t90]]]]",
+"]]]%hf3X+thu=]]]",
+"]]%h&2.]]pe+pO]]",
+"]9l]]p=]]+y]]h7]",
+"],g]1l:]]*x3]g5]",
+"]7cgp%]]]]=lpp5]",
+"]]::9]]]]]]:::]]"
+};