Added More Fields to the Particle Power

[Dahminh]

Added fields:

• visible_while_invisible, type Boolean, Determines if the particles should show if the entity is invisible or not
• count, type Integer, Determines the number of particles spawned
• spread, type Vector, similar to the Spawn Particles action's spread, determines how spread out the particles will be
• offset_y, type Float, determines at which y level should the particles spawn at

All of these added fields have default values:

• visible_while_invisible, default is false
• count, default is 1
• spread, default is {x: 0.25, y: 0.5, z: 0.25}
• offset_y, default is 1.0

Notes: I have no idea how to throw an error when count is less than or equal to 0 but probably should be done to inform datapack makers that there is an invalid Integer for count.

[Dahminh]

Added speed field to Particle Power. speed, type Float modifies the velocity of the particle. speed, default value is 0.0

Same issue with count where I have no idea how to throw an error when speed is less than 0 but probably should be done to inform datapack makers that there is an invalid float for speed.