Create engine config file

[fsmosca]

• Read the current dir where pecg.exe is located and look for pecg_engines.json file.
• If there is no pecg_engines.json file, then read the engines dir and create pecg_engines.json file.
  • The json format will be the same to that of cutechess
  • Run uci engine and determine its options and id name
    • Save all options and write it to json file. Hash is set to 64, and threads is set to 1, all other options will use default values.
    • Write engine id name to json file.
• Read the json file at startup and show the engine id name in engine list box when user presses Set Engine Opponent.
• When user selects an engine from the engine list, and presses OK button
  • Read the json file and save the engine file and path with file
• Tested uci engines
  • Alaric
  • Amoeba
  • Anmon
  • Andscacs
  • Arasan
  • Arminius
  • Atlas
  • Bobcat
  • Booot
  • Cheng
  • Critter
  • Demolito
  • Deuterium
  • Ethereal
  • Floyd
  • Fire
  • Fizbo
  • Gaviota (Does not work, Python-Chess 0.28.0 does not run it)
  • Greko
  • Gogobello
  • Hannibal
  • Ice
  • Laser
  • Lc0
  • Marvin
  • Maverick
  • Monolith
  • Nemorino
  • Pedone
  • Rhetoric
  • Pirarucu
  • Rodent
  • RofChade
  • RubiChess
  • Schooner
  • Senpai
  • Shield
  • Skiull
  • SmarThink
  • Spark (Does not work, Python-Chess 0.28.0 does not run it)
  • Spike (Does not work, Python-Chess 0.28.0 does not run it)
  • Stockfish
  • Texel
  • The Baron
  • Toga
  • Topple
  • Vajolet2
  • Wasp
  • Winter
  • Xiphos
  • Zurichess