Feat: Make a validation in body of request (DTO)

[talis-fb]

Issue Ticket Number

Closes Issue #12 .

Description

Now, it's possible make a DTO to assign for parameters that implement @Body() in Controllers methods. The DTO needs to be a class, which each field uses Validation decorator of the repository Savory/validatte

Example

import { IsNumber, IsString } from 'https://deno.land/x/validatte/mod.ts';

class DTO {
    @IsString()
    name!: string;

    @IsNumber()
    age!: number;
}

@Controller('/test')
class AppController {
    constructor() {}
    @Post('')
    sayHello(@Body() body: DTO) { 
                // If the body received doens't follow the DTO a 400 status code is returned
        return 'Hello');
    }
}

I wrote some tests to this feature too, but didn't do the documentation yet. I let it for another Issue, but I can write in this one if you guys prefer.

It was also my first time with Deno and handle decorators internally. I'm open to listening to any note, suggestion or something wrong =D

---

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] This change requires a documentation update

---

Checklist:

• [x] I have run deno lint AND deno fmt AND deno task test and got no errors.
• [x] I have followed the contributing guidelines of this project as mentioned in CONTRIBUTING.md
• [x] I have checked to ensure there aren't other open Pull Requests for the same update/change?
• [x] I have performed a self-review of my own code
• [ ] I have made corresponding changes needed to the documentation

[codecov-commenter]

Codecov Report

Merging #49 (2e33a63) into main (123e508) will increase coverage by 0.50%. The diff coverage is 89.83%.

@@            Coverage Diff             @@
##             main      #49      +/-   ##
==========================================
+ Coverage   84.60%   85.10%   +0.50%     
==========================================
  Files          26       38      +12     
  Lines        1104     1182      +78     
  Branches       90       98       +8     
==========================================
+ Hits          934     1006      +72     
- Misses        168      174       +6     
  Partials        2        2              

Impacted Files	Coverage Δ
src/router/controller/params/decorators.ts	76.13% <88.00%> (+1.13%)	:arrow_up:
src/deps.ts	100.00% <100.00%> (ø)
src/exception/http/exceptions.ts	45.29% <100.00%> (+2.34%)	:arrow_up:
src/exception/filter/mod.ts	100.00% <0.00%> (ø)
src/router/controller/mod.ts	100.00% <0.00%> (ø)
src/router/controller/params/mod.ts	100.00% <0.00%> (ø)
src/injector/mod.ts	100.00% <0.00%> (ø)
src/utils/constructor.ts	100.00% <0.00%> (ø)
src/router/mod.ts	100.00% <0.00%> (ø)
src/mod.ts	100.00% <0.00%> (ø)
... and 5 more

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