v1.4.0.0 ROEngines for KSP 1.6.1 & KSP 1.7.3

• Fix Gimbal Issues and look at constraints (thanks to @blowfishpro)
• Fix Plume Issues (thanks to @blowfishpro)
• Fixed the verniers on RD-0105
• Fixed Gimbal Issues
  • RD-58
  • RD-8 (thanks @fat-lobyte)
  • NK33 (thanks @fat-lobyte)
  • NK43 (thanks @fat-lobyte)
  • AJ10 Advanced
• Updated the Textures Unlimted shaders to the new versions
• Added a whitelist for Restock (thanks @Gordon-Dry)
• Folder Restructuring
• NEW ENGINES
  • Merlin Family (SSTU by Shadowmage45)
• Fixed the Aerobee solids from not being hidden in Patch Manager (thanks @rsparkyc)
• Fixed many plumes and textures (thanks @gazpachian)
• Made the MR104, PLE and S400 Pressure Fed (thanks @gazpachian)