Add conversion document for strings.ts

Author: MasterJ93

Conversion Documentation/common-web strings conversion.md

@@ -0,0 +1,43 @@
+# Conversion for `common-web/strings.ts`
+
+## `export const utf8Len = (str: string): number`
+
+This is redundant and will not be converted. Use `.utf8.count` on the `String` object instead.
+
+```swift
+let string = "I am feeling great today!"
+string.utf8.count
+```
+
+## `export const graphemeLen = (str: string): number`
+
+This is redundant and will not be converted. Use `.count` on the `String` object instead.
+
+```swift
+let string = "I am feeling great today!"
+string.count
+```
+
+## `export const utf8ToB64Url = (utf8: string): string`
+
+This is redundant and will not be converted. MultiformatKit and ATCryptography both contain methods that will convert from a `String` to Base64URL. Use one of those instead.
+
+## `export const b64UrlToUtf8 = (b64: string): string`
+
+This is redundant and will not be converted. MultiformatKit and ATCryptography both contain methods that will convert from Base64URL to a `String` object. Use one of those instead.
+
+## `export const parseLanguage = (langTag: string): LanguageTag | null`
+
+This is unneeded and will not be converted. Use `Locale` instead.
+
+## `export const validateLanguage = (langTag: string): boolean`
+
+This is unneeded and will not be converted.
+
+## `export type LanguageTag`
+
+This is unneeded and will not be converted.
+
+## `const bcp47Regexp`
+
+This is unneeded and will not be converted.