add _fill_with_ template notation to picture loader

[ebbit1q]

Related Ticket(s)

• Fixes Reference Point Collector Number with filling zeros #4286

Short roundup of the initial problem

sometimes you want to add leading zeroes to values

What will change with this Pull Request?

• all !prop:! and !set:! notations can now end with _fill_with_ and then a value to fill with.
• filling is always done with the text right aligned
• if a value is longer than the fill target the url is skipped and a message is displayed in the log

Examples

using the url testurl!set:num_fill_with_000!and!prop:maintype_fill_with_________!compare!set:num!
output:

PictureLoader: [card:  "Air Elemental"  set:  "LEA" ]: Trying to load picture
PictureLoader: [card:  "Air Elemental"  set:  "LEA" ]: Picture not found on disk, trying to download
PictureLoader: [card:  "Air Elemental"  set:  "LEA" ]: Trying to download picture from url: "testurl046andCreaturecompare46"
PictureLoader: [card:  "Air Elemental"  set:  "LEA" ]:  Download failed: "Protocol \"\" is unknown"
PictureLoader: [card:  "Air Elemental"  set:  "LEA" ]: Possible picture at  "testurl046andCreaturecompare46"  could not be loaded
...
PictureLoader: [card:  "Bad Moon"  set:  "LEA" ]: Requested property ( "maintype" ) for Url template ( "testurl!set:num_fill_with_000!and!prop:maintype_fill_with_________!compare!set:num!" ) is longer than fill specification ( "________" )
...
PictureLoader: [card:  "Badlands"  set:  "LEA" ]: Trying to load picture
PictureLoader: [card:  "Badlands"  set:  "LEA" ]: Picture not found on disk, trying to download
PictureLoader: [card:  "Badlands"  set:  "LEA" ]: Trying to download picture from url: "testurl277and____Landcompare277"
PictureLoader: [card:  "Badlands"  set:  "LEA" ]:  Download failed: "Protocol \"\" is unknown"
PictureLoader: [card:  "Badlands"  set:  "LEA" ]: Possible picture at  "testurl277and____Landcompare277"  could not be loaded

while this isn't a valid url it outputs the result in the error message, showing it works as expected.