Add structure map generation tool to efsity

[Wambere]

IMPORTANT: Where possible all PRs must be linked to a Github issue

Fixes #[issue number] or Closes #[issue number]

Engineer Checklist

• I have run ./gradlew spotlessApply to check my code follows the project's style guide
• I have built and run the efsity jar to verify my change fixes the issue and/or does not break the application

[Wambere]

@sharon2719 @Lentumunai-Mark this is the PR that needs to be finished up to get the sm-tool integrated into efsity

[sharon2719]

@sharon2719 @Lentumunai-Mark this is the PR that needs to be finished up to get the sm-tool integrated into efsity

Noted @Wambere

[Wambere]

I'd also add a new page under efsity/docs for this command with more information especially on the xls configuration file, what that should look like and an example

[pld]

some notes so far, didn't get to review everything

[ndegwamartin]

Could we also use version catalogs for these entries? -

fhir-tooling/efsity/build.gradle.kts

Lines 90 to 96 in 322fce5

	implementation("ca.uhn.hapi.fhir:hapi-fhir-validation:6.8.0")
	testImplementation(kotlin("test"))
	testImplementation("junit:junit:4.13.2")
	testImplementation("org.mockito:mockito-inline:3.12.4")
	testImplementation("io.mockk:mockk:1.13.7")
	testImplementation("org.mockito.kotlin:mockito-kotlin:4.1.0")