Mesh rotation helpers.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

f7d65091 introduces error when no endian.h found in the system.

Since "CHECK_INCLUDE_FILE" returns empty string instead of "0", when
"cmake_config.h" is generated it has "#define CMAKE_HAVE_ENDIAN_H " line.
Later we have "#define HAVE_ENDIAN_H CMAKE_HAVE_ENDIAN_H" in the
"config.h", an thus "HAVE_ENDIAN_H" is also empty sting. Because of
this, "#if HAVE_ENDIAN_H" is incorrect preprocessor directive.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

serialize.h: use machine native byte swapping if available, fall-back to previous generic method if not (supported for GCC using endian.h, detection done in cmake) write/readARGB8() - just write 32-bit color in one op, instead of 4 1-byte ops cleanup: removed unneeded buffer init for some serialize-out functions use a #define for the fixed point factor in read/writeF1000()

nodemetadata.cpp, nodetimer.cpp
	optimzation: simpler deserialize node position method

staticobject.cpp:
	cleanup: use util/serialize.h inlines instead of its own de/serialization

serialize.cpp:
	minor optimization/cleanup: avoid generation of unneeded string temporary

CMakeLists.txt, cmake_config.h.in: detection of endian.h

config.h: added HAVE_ENDIAN_H

Commits due to feedback squashed

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

CNodeDefManager::get()
VoxelManipulator::addArea()

getTileInfo() ~1.5x faster
getSmoothLight ~2.0x faster

NB: Minor edits to patch made by Zeno- (int to short and minor formatting)

Also fix leaking globals found by it.

This adds proper support for nested tables and improves performance a bit.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Errors found by @Sokomine.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Thanks @oleastre

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

Mapgen v5: Fix minor style issue

Add BiomeManager, OreManager, DecorationManager, and SchematicManager

Create faster key cache for main game loop (client)