Multimedia preprocessed demo data

[YihanLiu4023]

This is the preprocessed demo data for multimedia analysis

[antagomir]

GHA check seems to fail with warning

Error: Error: R CMD check found WARNINGs
anchors:
Execution halted
addCluster.Rd: BlusterParam-class
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.

I think you could fix it by adding something like this in the relevant roxygen files on relevant functions

@param ... some parameter of class \link[bluster]{BlusterParam-class}