Change log for version 0.2

My first update for the Classic64 texture pack! Woo! This update features 64 new items (didn't plan that, haha). Three of the files are 3D (.blend) and the rest are textures.  I also changed the license over to a CC0, or public domain. As a result, I removed 2 files (dandilon) which were from another creator (I was unsure if it was licensed for CC0). 

Note: Updated 3/15/2021 with credits for some grass textures.

List of new textures:

- building_old_tan_01.png
- building_old_tan_02.png
- building_old_tan_03.png
- window_office.png
- metal_disc.png
- building_misc.png
- electrical_wires_group_3.png
- electrical_wires_group_3_curve.png
- electrical_wires_group_3_plain.png
- electrical_wires_group_5.png
- electrical_wires_group_curve.png
- electrical_wires_group_plain.png
- water_waves.png
- waterfall_with_stones.png
- rug_light_gray_02.png
- vintage_sign_01.png
- vintage_sign_02.png
- cabinet_door_01.png
- cabinet_door_02.png
- metal_army_tank.png
- metal_army_tank_2.png
- metal_army_tank_top.png
- metal_rusty_3.png
- metal_rusty_4.png
- metal_misc.png
- sign_warning_3.png
- metal_rusty_2.png
- plywood.png
- wood_pallet- 
- wood_plank_3.png
- wood_plank_4.png
- truck_wheel_2.png
- truck_wheel_1.png
- valve_cap_green.png
- gravel_06.png
- gravel_07.png
- gravel_08.png
- grass_dead_01.png
- grass_dead_02.png
- grass_dead_03.png
- concrete_5.png
- dirt_02.png
- [updated] sign_confined_space.png
- [updated] sign_chemical_rusty.png
- culvert_pipe.png
- sand_01.jpg
- sand_02.png
- sand_03.png
- sand_mossy_01.png
- rocks_grass_01.png
- rocks_grass_02.png
- rocks_01.png
- rocks_02.png
- rocks_03.png
- rocks_04.png
- rocks_05.png
- rocks_06.png
- mud_tiretracks_01.png
- metal_painted_gray.png
- light_01.png
- rocks_around_puddle.png

List of new models:

- sign_confined_space.blend
- sign_chemical_rusty.blend
- shovel.blend