[processing] remove compiled ui files
[processing] replace two similar dialogs with generic one
[processing] update projection selector widget
[processing] update extent selection widget
[processing] remove similar widgets (use generic one instead)
[processing] remove MultipleFileInputPanel as it duplicates MultipleInputPanel
homogenize UI in FileSelectionPanel and RenderinStylePanel, remove inused imports
[processing] update MultipleFileInputDialog
[processing] don't override default selection mode in ui file
[processing] update range input widget
[processing] rename number selector to keep consistency
[processing] fix typo
[processing] update fixed table widget and dialog
[processing] update layer selector widget
[processing] refactor algortim dialog

Now we have base class AlgorithmDialogBase for all algortims. Dialogs
for algorithms and batch processes should be created by subclassing this
base dialog and adding to it corresponding parameters panel.

ParametersPanel for single algorthm already updated to this approach.
[processing] refactor batch processing dialog and update related parameters widgets
[processing] handle ints and floats in range parameter panel