iFilemonger for iOS

This version introduces three new format viewers (STL, PLY and 3MF) and one new archive format (TAR). It adds support to third party document providers (like iCloud, Google docs, Dropbox.) Also, it improves significantly file loading performance and provides stability fixes.Added .STL, base .3MF and .PLY viewersAdded support for .TAR archivesAdded support for document providers (iCloud, Google docs, Dropbox, etc.)Performance improvements 2x - 8x in initial importRendering and interaction stability: Fixed orthographic view clipping after scaling Fixed drawing of ghost polygon data as lines in wireframe mode Fixed duplicate drawing of 2D elements without element color Fixed 3rd touch crash Improved transition from one to two touches while dragging (i.e.: Orbit to Scaling)OBJ stability improvements: Fixed issue with .OBJ files in "usemtl" when number was used as name Added support for undocumented primitive "map_ke" present in some .OBJ material filesGerber stability improvements: Fixed Gerber variable referencing in Aperture definitions Fixed excessive empty block generation in g-code readingZIP stability improvements: Support hierarchy for extracted .zip archives Fixed .zip directories containing spaces inside the ZIP pathAdded link to "[Parent directory]" in local directory viewerUpgraded to the latest iOS dialog when handling "mailto:" in browserDeclared the app as handler for a broader number of file typesFixed appearance of web pages changing after a timeout or server restart.