Correct crossbreeding character × for key species

[PanderMusubi]

Nodes with natural=tree can have a value for the key species which donates the species of the mapped tree. Sometimes, the species is crossbred and the value is a concatenation of two names separated with a × character (with spaces on either side of that character). This character is U+00D7 or the MULTIPLICATION SIGN in Unicode.

A good example is https://taginfo.openstreetmap.org/tags/species=Citrus%20%C3%97%20aurantium

However, since not everybody knows that this is not a character x or doesn't know how to enter it, the character x or X is used. Examples of this are https://taginfo.openstreetmap.org/tags/species=Platanus%20x%20hispanica and https://taginfo.openstreetmap.org/tags/species=Platanus%20X%20hispanica

Please add support in keepright in order to easily correct these values, without the user having to enter the × character himself or herself.

[PanderMusubi]

Additionally, this character should not appear in values for teh key genus. Examples which should be fixed manually (probably by changing the key from genus to species).

Examples are https://taginfo.openstreetmap.org/tags/genus=Magnolia%20%C3%97%20soulangeana and https://taginfo.openstreetmap.org/tags/genus=Salix%20sepulcralis%20(%C3%97)%20'Chrysocoma'

[PanderMusubi]

Also, for species no brackets need te be used around the ×. Examples are https://taginfo.openstreetmap.org/tags/species=Tilia%20(x)%20Europaea%20Pallida and https://taginfo.openstreetmap.org/tags/species=Salix%20sepulcralis%20(%C3%97)%20'Chrysocoma'

[PanderMusubi]

Last but not least, a value for species should always start with an upper case character.

[PanderMusubi]

Note that this is not limited to nodes natural=tree and probably applies to all elements with tags species and/or genus.