AWS Lambda region list not up to date

[d3cxxxx]

AWS now supports more regions than what is listed in the project.
The updated list can be found at: https://docs.aws.amazon.com/general/latest/gr/lambda-service.html

[d3cxxxx]

Here is the updated list (updated RegionInfo.kt file in app/src/main/java/com/alexsci/android/lambdarunner/aws/ folder). I don't know how to create a PR on github, hence pasting the file here. This code fixes #5.

`package com.alexsci.android.lambdarunner.aws

import java.lang.RuntimeException
import java.util.*

class RegionInfo {
companion object {
private const val ALL_REGIONS_GROUP = "All Regions"

    private val displayNames: Map<String, Map<String, String>> = mapOf(
        "United States" to mapOf(
            "us-east-1" to "N. Virginia",
            "us-east-2" to "Ohio",
            "us-west-1" to "N. California",
            "us-west-2" to "Oregon"
        ),
        "Africa" to mapOf(
            "af-south-1" to "Cape Town"
        ),
        "Asia Pacific" to mapOf(
            "ap-east-1" to "Hong Kong",
            "ap-south-1" to "Mumbai",
            "ap-south-2" to "Hyderabad",
            "ap-southeast-1" to "Singapore",
            "ap-southeast-2" to "Sydney",
            "ap-southeast-3" to "Jakarta",
            "ap-northeast-1" to "Tokyo",
            "ap-northeast-2" to "Seoul",
            "ap-northeast-3" to "Osaka"
        ),
        "Canada" to mapOf(
            "ca-central-1" to "Montreal"
        ),
        "China" to mapOf(
            "cn-north-1" to "Beijing"
        ),
        "Middle East" to mapOf(
            "me-south-1" to "Bahrain",
            "me-central-1" to "UAE"
        ),
        "European Union" to mapOf(
            "eu-west-1" to "Ireland",
            "eu-west-2" to "London",
            "eu-west-3" to "Paris",
            "eu-south-1" to "Milan",
            "eu-south-2" to "Spain",
            "eu-north-1" to "Stockholm",
            "eu-central-1" to "Frankfurt",
            "eu-central-2" to "Zurich"
        ),
        "GovCloud" to mapOf(
            "us-gov-east-1" to "US-East",
            "us-gov-west-1" to "Northwest"
        ),
        "South America" to mapOf(
            "sa-east-1" to "Saõ Paulo"
        )
    )

    fun groups(): Array<String> {
        return arrayOf(ALL_REGIONS_GROUP).plus(displayNames.keys.toTypedArray())
    }

    fun groupForCode(regionCode: String): String {
        for (item in displayNames) {
            if (item.value.containsKey(regionCode)) {
                return item.key
            }
        }
        throw RuntimeException("Unexpected region $regionCode")
    }

    fun displayNameForCode(regionCode: String): String {
        for (item in displayNames) {
            val displayName = item.value[regionCode]
            if (displayName != null) {
                return displayName
            }
        }
        throw RuntimeException("Unexpected region $regionCode")
    }

    fun regionCodesForRegionGroup(groupName: String): Array<String> {
        if (! displayNames.containsKey(groupName)) {
            val res = LinkedList<String>()
            for (groupInfo in displayNames.values) {
                res.addAll(groupInfo.keys)
            }
            return res.toTypedArray().sortedArray()
        } else {
            return displayNames[groupName]!!.keys.toTypedArray()
        }
    }
}

}
`