Option to print sem version only for the root project in a multi module project

[sureshg]

Right now for a multi module project, semver is getting printed for all modules

> Task :meta:printSemver
semver for meta: v0.11.0.49+78d8ff2

> Task :web:printSemver
semver for web: v0.11.0.49+78d8ff2

> Task :dep-mgmt:printSemver
semver for dep-mgmt: v0.11.0.49+78d8ff2

> Task :compose:printSemver
semver for compose: v0.11.0.49+78d8ff2

> Task :backend:printSemver
semver for backend: v0.11.0.49+78d8ff2

> Task :meta:ksp:processor:printSemver
semver for processor: v0.11.0.49+78d8ff2

> Task :compose:web:printSemver
semver for web: v0.11.0.49+78d8ff2

> Task :dep-mgmt:bom:printSemver
semver for bom: v0.11.0.49+78d8ff2

> Task :shared:printSemver
semver for shared: v0.11.0.49+78d8ff2

> Task :dep-mgmt:catalog:printSemver
semver for catalog: v0.11.0.49+78d8ff2

This is getting too verbose. So provide an option to print only for root project by default.