feat(biometrics): add configurable BMI age restriction for minors

[olewandowski1]

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Summary

This PR introduces two new configuration options under biometrics that allow implementers to restrict BMI visibility based on patient age:

• restrictBmiForMinors – enables or disables age‑based BMI restriction
• bmiRestrictionMinAge – defines the minimum age at which BMI is shown

When enabled, BMI is hidden and not calculated for patients younger than the configured age across the vitals header, biometrics table, biometrics charts, and the vitals and biometrics form. Patient age is derived using the OpenMRS age() utility, and when age is unavailable, BMI remains visible as a safe fallback.

By default, BMI restriction is false (disabled), meaning there is no change in behavior unless these new configuration options are explicitly enabled, ensuring full backward compatibility.

UI

Kazam_screencast_00020.mp4

[olewandowski1]

Hi @denniskigen , could you please review this PR when you have a moment?

[olewandowski1]

Hi @denniskigen , could you take a look on this one?