v0.013

v0.013 update adds/changes:

• added walking sound effects
• tweaked sounds
• add random when attacking
• bug fixes
• fixed typos
• better saving method (player)
• added different bush texture
• added title sound
• added options menu (escape)
• added custom cursor
• added health
• added inventory uses mouse instead of keyboard
• added block breaking with left mouse button
• added sprint (by default)
• added stamina
• blocks and items own class
• switch inventory mechanism
• optimization update
• entities are not rendered outside of the viewport anymore- lighting tweaked
• save files format to json
• removed unnecessary file i/o operations
• added crafting
• added coal
• added sword
• added pickaxe
• added axe
• added shield
• added stick
• added building
• added torches
• upgraded from java 8 to java 17