Kotlin Multiplatform support

[vanniktech]

Formatting support could be extension functions on JVM/Android. I don't have an idea how to do it on native though

[JakeWharton]

Happy to do this if I can find the time.

Probably want to do this in some typical steps (which each might have a few PRs):

• Gradle
• GitHub Actions
• Kotlin JVM only
• Kotlin MPP

I'm happy to accept PRs for this stuff. The smaller and more focused the easier it is for me to review and smash the merge button.

[vanniktech]

Regarding formatting, what's your desired API?

Should we have fun format(bytes: Long, pattern: String): String in commonMain and then use DecimalFormat(pattern) via expect/actual all the way for all targets?

And:

@JvmOverloads fun format(
      bytes: Long,
      format: NumberFormat = DecimalFormat(DEFAULT_FORMAT_PATTERN),
    ): String {

only as an extension function in jvmMain?

[JakeWharton]

Hmm. It would be really nice to maintain binary compatibility so we may have to do an expect/actual dance on the enums so as to be able to hang it directly on the types. It certainly sucks for maintaining, but it'll make consumer's lives easier.