feat: rewrite programming-challenges CLI (#3)

challenges/caesar-cipher/solutions/typescript-caesar-cipher/README.md

@@ -1,5 +0,0 @@
-# typescript-caesar-cipher - caesar-cipher
-
-Programming language : TypeScript
-
-Created by [@Divlo](https://github.com/Divlo) on 21 October 2020.

challenges/caesar-cipher/solutions/typescript-caesar-cipher/solution.ts

@@ -1,42 +0,0 @@
-const alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.split('')
-
-interface ShiftedLetter {
-  origin: string
-  shifted: string
-}
-
-function shiftAlphabet (shift: number): ShiftedLetter[] {
-  const result: ShiftedLetter[] = []
-  for (let index = 0; index < alphabet.length; index++) {
-    const letter = alphabet[index]
-    let shiftedIndex = index + shift
-    if (shiftedIndex > alphabet.length - 1) {
-      shiftedIndex = Math.abs(alphabet.length - shiftedIndex)
-    }
-    result.push({
-      origin: letter,
-      shifted: alphabet[shiftedIndex]
-    })
-  }
-  return result
-}
-
-function solution (str: string, shift: number): string {
-  const shiftedAlphabet = shiftAlphabet(shift)
-  let result = ''
-  for (const letter of str) {
-    if (letter === ' ') {
-      result += ' '
-    } else {
-      for (const { origin, shifted } of shiftedAlphabet) {
-        if (letter === shifted) {
-          result += origin
-          break
-        }
-      }
-    }
-  }
-  return result
-}
-
-export default solution