Add more conditional extensions for CustomNamer

[ivanlonel]

Adds the following extensions:

• ConditionalGender: prints ♂ if male, ♀ if female and an empty string if genderless.
• ConditionalStatNature: prints the stat (minted) nature name only if it's different from original nature, empty string otherwise. The printed string starts with the character ➔, so you can do {Nature}{ConditionalStatNature} and get Gentle➔Modest.
• ConditionalScale: prints Scale if available (Legends Arceus or newer), HeightScalar as a second option and an empty string for older saves. Preceded by - if not empty. Example: {(Species)Species} {ConditionalScale} ➔ Wailord - 255.
• Alpha and ConditionalAlpha: Like Gigantamax and ConditionalGigantamax, the first prints Alpha if the pokémon is an alpha, and the second prints (Alpha).
• ConditionalNickname: prints the nickname in square brackets if the pokémon is nicknamed, empty string otherwise. I know {Nickname} already defaults to the species name if the pokémon isn't nicknamed, but if the pokémon is in a different language it will print the species name in that language, while {(Species)Species} always prints it in English. So you can do {ConditionalNickname} {(Species)Species} and your Japanese Ditto will still be printed as just Ditto if not nicknamed (or [Masuda] Ditto if its nickname is Masuda).
• ConditionalTeraType: prints - Tera <type> only if the pokémon is in a save from a game that supports tera types (currently only SV). Example: {(Species)Species} {ConditionalTeraType} ➔ Latios - Tera Electric.
• PaddedSID: prints the DisplaySID padded to 4 digits if the pokémon is from gen 7 or later, 5 digits otherwise.
• PaddedTID: prints the DisplayTID padded to 6 digits if the pokémon is from gen 7 or later, 5 digits otherwise.

Example custom string:
{Species:0000}{ConditionalForm} {ShinyType} - {ConditionalNickname} {(Species)Species} {ConditionalFormName} {ConditionalGigantamax} {ConditionalAlpha} {ConditionalGender} - {Nature}{ConditionalStatNature} - {(Ability)Ability} ({AbilityNumber}) {ConditionalTeraType} - {IV_HP:00}.{IV_ATK:00}.{IV_DEF:00}.{IV_SPA:00}.{IV_SPD:00}.{IV_SPE:00} - {(Ball)Ball} {ConditionalScale} - {MetDate.Year}.{MetDate.Month:00}.{MetDate.Day:00} - {OriginalTrainerName} ({PaddedSID}.{PaddedTID}) - {Version} - {Checksum:X4}{EncryptionConstant:X8}

Results obtained using the string above:
0110-01 ★ - Weezing (Galar) ♀ - Hardy➔Modest - Levitate (1) - Tera Poison - 26.08.31.31.26.31 - Dream - 255 - 2024.01.23 - PKHeX (1234.123456) - SL - 06B4BE74AF7F.pk9

0720 - [HoompaLoompa] Hoopa - Modest - Magician (1) - Tera Psychic - 31.31.05.03.09.31 - Cherish - 115 - 2024.01.23 - Mac (00553.11275) - AS - 5FCD2C013F95.pk9

0413-01 - Wormadam (Sandy) (Alpha) ♀ - Hasty➔Impish - Anticipation (2) - 22.08.16.31.31.31 - LAPoke - 255 - 2024.01.23 - PKHeX (1234.123456) - PLA - 754A248533DD.pa8

0892-01 - Urshifu (Rapid-Strike) (Gigantamax) ♂ - Jolly - UnseenFist (2) - 00.31.00.31.00.31 - Poke - 70 - 2024.01.23 - PKHeX (1234.123456) - SW - 99430A33EE61.pk8

0029 ■ - [Juliet] NidoranF ♀ - Brave➔Timid - Hustle (4) - 20.07.14.28.05.19 - Poke - 158 - 2024.01.23 - PKHeX (1234.123456) - SH - 58CA90D44919.pk8

0025-01 - Pikachu (Original) ♂ - Hardy - Static (1) - 00.22.23.12.11.22 - Poke - 2024.01.23 - Ash (0275.090898) - SN - B23C8BFA260E.pk7

0385 - [StarFace] Jirachi - Hardy - SereneGrace (1) - 26.31.31.31.04.23 - Cherish - 2024.01.23 - GF (00559.04016) - Y - E949B67FD26A.pk7

0669-03 - [Egg] Flabébé (Blue) ♀ - Naive - FlowerVeil (2) - 13.02.29.13.22.11 - Luxury - 2017.02.23 - PKHeX (54321.12345) - X - 5F7E1F08A3E9.pk6

Closes #20

[ivanlonel]

Updated for PKHeX.Core 24.3.10