Add solution for Challenge 1,2,3 by krmaxwell #21

Job	Run time
Validate Submission Security	6s
test-submissions (challenge-2)	21s
test-submissions (challenge-1)	24s
test-submissions (challenge-7)	16s
test-submissions (challenge-3)	20s
test-submissions (challenge-4)	14s
test-submissions (challenge-18)	14s
test-submissions (challenge-5)	14s
test-submissions (challenge-27)	11s
test-submissions (challenge-8)	13s
test-submissions (challenge-23)	14s
test-submissions (challenge-13)	14s
test-submissions (challenge-15)	14s
test-submissions (challenge-12)	13s
test-submissions (challenge-26)	13s
test-submissions (challenge-29)	14s
test-submissions (challenge-6)	10s
test-submissions (challenge-24)	13s
test-submissions (challenge-25)	14s
test-submissions (challenge-19)	14s
test-submissions (challenge-14)	14s
test-submissions (challenge-11)	12s
test-submissions (challenge-30)	14s
test-submissions (challenge-9)	14s
test-submissions (challenge-16)	11s
test-submissions (challenge-21)	11s
test-submissions (challenge-10)	12s
test-submissions (challenge-17)	13s
test-submissions (challenge-28)	13s
test-submissions (challenge-20)	14s
test-submissions (challenge-22)	10s
	7m 4s

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