Add headers for ID and species fields

[lamlaaaam]

Have yet to morph tags into medical, so no headers for medical yet. Resolves #78

[codecov]

Codecov Report

Merging #81 into master will not change coverage.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##             master      #81   +/-   ##
=========================================
  Coverage     72.33%   72.33%           
  Complexity      389      389           
=========================================
  Files            69       69           
  Lines          1193     1193           
  Branches        119      119           
=========================================
  Hits            863      863           
  Misses          299      299           
  Partials         31       31           

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/seedu/address/ui/AnimalCard.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)

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