Simple Filter
grid_filter
QgsProcessingParameterRasterLayer|INPUT|Grid|None|False
QgsProcessingParameterEnum|KERNEL_TYPE|Search Mode|[0] Square;[1] Circle
QgsProcessingParameterEnum|METHOD|Filter|[0] Smooth;[1] Sharpen;[2] Edge
QgsProcessingParameterNumber|KERNEL_RADIUS|Radius|QgsProcessingParameterNumber.Integer|2|False|None|None
QgsProcessingParameterRasterDestination|RESULT|Filtered Grid
