[Feature] Standalone 환경에서 Custom Converter 사용 지원

[BGMSound]

• 이제 standalone 환경에서 custom converter를 등록하여 사용할 수 있음

[github-actions]

Test Results

17 tests   17 ✅  13s ⏱️
 9 suites   0 💤
 9 files     0 ❌

Results for commit ba658ec.

[github-actions]

Code Coverage Report

Overall Project	37.38% -1.17%	🍏
Files changed	23.68%	🍏

Module	Coverage
Kover Gradle Plugin XML report for :	70.93% -0.83%	🍏
Kover Gradle Plugin XML report for :documentify-project:documentify-core	0.52% -1.31%	❌
Kover Gradle Plugin XML report for :documentify-project:documentify-mvc	0.48% -2.73%	❌
Kover Gradle Plugin XML report for :documentify-project:documentify-reactive	0.45% -1.46%	❌

Files

Module	File	Coverage
Kover Gradle Plugin XML report for :	StandaloneReactiveContextEnvironment.kt	87.88% -2.02%	🍏
	StandaloneMvcContextEnvironment.kt	82.22% -2.96%	🍏
	AbstractStandaloneContextEnvironment.kt	36.3% -23.7%	🍏
	StandaloneContextEnvironment.kt	0%	🍏
Kover Gradle Plugin XML report for :documentify-project:documentify-core	StandaloneContextEnvironment.kt	0%	🍏
	AbstractStandaloneContextEnvironment.kt	0% -29.63%	❌
Kover Gradle Plugin XML report for :documentify-project:documentify-mvc	StandaloneMvcContextEnvironment.kt	0% -17.04%	❌
Kover Gradle Plugin XML report for :documentify-project:documentify-reactive	StandaloneReactiveContextEnvironment.kt	0% -6.57%	❌