Add EF extension for lambda injection

[axelheer]

This enables global Lambda injection for EF Core:

    services.AddDbContext<MyContext>(options =>
         options.UseSqlOrTheLike("...").WithLambdaInjection());

You're welcome.

[codecov]

Codecov Report

Merging #24 (07530e3) into devel (be8c81c) will decrease coverage by 0.40%.
The diff coverage is 86.36%.

@@            Coverage Diff             @@
##            devel      #24      +/-   ##
==========================================
- Coverage   95.83%   95.43%   -0.41%     
==========================================
  Files          46       48       +2     
  Lines         985     1029      +44     
  Branches      221      230       +9     
==========================================
+ Hits          944      982      +38     
- Misses         21       24       +3     
- Partials       20       23       +3     

Impacted Files	Coverage Δ
...ameworkCore/InjectableDbContextOptionsExtension.cs	82.85% <82.85%> (ø)
...ore/InjectableDbContextOptionsBuilderExtensions.cs	100.00% <100.00%> (ø)

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