NEW - wcst_import skip_by_analyze new setting

[Bang Pham Huu]

wcst_import skip when set to true, then it will:

• Skip an input file if the file cannot be opened by wcst_import
• Skip the input file when it is not possible to import to rasdaman (this is dangerous).

Hence, it needs a new setting, called on_file_analysis_error which when set to true and skip: false, then the input files which cannot be opened will be skipped, but if the files cannot import to rasdaman, then the process must stop.

In summary:

• skip: true - skips file on any error
• skip: false - stop import on any error
• skip: "on_file_analysis_error" - skip file only if file analysis fails