nds-examples v20241110

Updated and cleaned up for libnds v2 and calico

nds examples 2020-10-05

• Add gl2d example code
• Allow exit in 256 color tilemap example

nds-examples 2018-12-26

v20181226

resync with default arm7

nds examples 2018-05-16

• sync with default arm7

nds examples 2017-09-15

v20170915

clean up metadata