feat: Prevent SQL Injection

[EnriqueL8]

• Update the query execution to accept Parameters in order to prevent sql injection
• Updated tests

[codecov-io]

Codecov Report

Merging #40 into master will increase coverage by 0.31%.
The diff coverage is 93.33%.

@@            Coverage Diff            @@
##           master     #40      +/-   ##
=========================================
+ Coverage   29.89%   30.2%   +0.31%     
=========================================
  Files           6       6              
  Lines        1348    1354       +6     
=========================================
+ Hits          403     409       +6     
  Misses        945     945

Flag	Coverage Δ
#SwiftKueryORM	30.2% <93.33%> (+0.31%)	⬆️

Impacted Files	Coverage Δ
Sources/SwiftKueryORM/Model.swift	38.5% <93.33%> (+0.49%)	⬆️

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