new: read z from attribute (-z_from_attribute)
new: translate_scale_translate functions
coldesc support in las2txt, txt2las
hsv/hsl color model
copc implementation
support of non-extended classifications in laswriter

las2las: added parameter '-load_ogc_wkt' (load string from file to OGC WKT);
updated doc (code and *.md); added missing cs codes

Documentation update; added '-iptx_transform' option; sync LASzip sources which are under Apache Public License 2.0 now;
Fix fseek for gcc for las/lax file > 2Gb;

LAStools Version 220107.
Due some requests we start to use the git release feature starting now.
LAStools use a versioning in YYMMDD scheme. This is common for most LAStools users for long time - so we keep this version numbers.
Additionally we will follow the git versioning guidelines for the open source releases. They may also flow into sourcecode next.
Cause we have quite something like a history we start straight away with version 2.0.0.