Add all file path parameters

[sofstam]

Description of feature

Going through all ToDos before first-release, it would be good to add all file path parameters for the pipeline to the list below:

taxprofiler/workflows/taxprofiler.nf

Lines 12 to 17 in 578081d

	// TODO nf-core: Add all file path parameters for the pipeline to the list below
	// Check input path parameters to see if they exist
	def checkPathParamList = [ params.input, params.databases, params.hostremoval_reference,
	params.shortread_hostremoval_index, params.multiqc_config,
	params.shortread_qc_adapterlist
	]

[sofstam]

Are multiqc_title, multiqc_logo and multiqc_methods_description path parameters?

[jfy133]

logo and methods description is, but these aren't critical

[jfy133]

I'll add them anyway now as I had to do a small bug fix