Update to iOS 14.6

[dmlls]

This pull request includes all emojis listed under https://emojipedia.org/apple/ios-14.6/.

Instead of merging it to master, I would suggest creating another branch, e.g., "ios-14.6" (and making it default). This way we can keep a history of emoji versions.

[dmlls]

Additionally, some extra emojis have been added. These are not present on iOS, but are common enough so as to include them, plus they were already present in the previous release:

• Asterisk
• Hash Sign
• Digit Zero
• Digit One
• Digit Two
• Digit Three
• Digit Four
• Digit Five
• Digit Six
• Digit Seven
• Digit Eight
• Digit Nine

The previous emojis have been taken from Android 12L. The following two have been taken from WhatsApp 2.21.23.23:

• Female Sign
• Male Sign

To test emoji support, I recommend visiting https://unicode.org/emoji/charts/full-emoji-list.html and checking the "Browser" column.

[samuelngs]

Awesome work @dmlls! Thanks for your contribution 😄