Create generator for practice exercises

[ErikSchierboom]

This issue keeps track of which practice exercises have had a generator added to them:

• accumulate
• acronym
• all-your-base
• allergies
• anagram
• armstrong-numbers
• atbash-cipher
• bank-account
• beer-song
• binary
• binary-search
• binary-search-tree
• bob
• change
• clock
• collatz-conjecture
• complex-numbers
• crypto-square
• diamond
• difference-of-squares
• dominoes
• eliuds-eggs
• etl
• flatten-array
• gigasecond
• go-counting
• grade-school
• grains
• hamming
• hello-world
• hexadecimal
• isbn-verifier
• isogram
• kindergarten-garden
• largest-series-product
• leap
• leap
• list-ops
• luhn
• matching-brackets
• meetup
• minesweeper
• nth-prime
• nucleotide-count
• octal
• pangram
• pascals-triangle
• perfect-numbers
• phone-number
• pig-latin
• poker
• pov
• prime-factors
• protein-translation
• proverb
• pythagorean-triplet
• queen-attack
• raindrops
• reverse-string
• reverse-string
• rna-transcription
• robot-name
• robot-simulator
• roman-numerals
• rotational-cipher
• run-length-encoding
• say
• scrabble-score
• secret-handshake
• series
• sieve
• space-age
• spiral-matrix
• strain
• sublist
• sum-of-multiples
• transpose
• triangle
• trinary
• two-fer
• word-count
• wordy
• yacht
• zipper

[ErikSchierboom]

I tried to more elegantly handle keywords and maps, but finally found out why it didn't work:

(defn- wrap-context [model]
  (clojure.walk/postwalk
   #(cond
     (map? %) (java.util.HashMap. ^java.util.Map %)
     (keyword? %) (name %)
     :else %) model))

We're basically always losing information before rendering.

source

[ErikSchierboom]

I've tried monkey patching that function but then hbs just crashes