FINERACT-2422: standardize use of aging vs. ageing

[Kengne-yvana]

Description

Describe the changes made and why they were made. (Ignore if these details are present on the associated Apache Fineract JIRA ticket.)

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[Kengne-yvana]

@IOhacker please can you review this PR

[IOhacker]

@Kengne-yvana please change the title and the PR from this "[#FINERACT-2422] standardize use of aging vs. ageing" to this "FINERACT-2422: standardize use of aging vs. ageing"

[IOhacker]

I am not native speaker, I am adding this as a note, because I have found that:

Both aging and ageing are correct, with the difference being regional preference: aging (without the 'e') is standard in American English, while ageing (with the 'e') is preferred in British English, though 'aging' is increasingly common globally.

Reference: https://internet.psych.wisc.edu/wp-content/uploads/532-Master/532-UnitPages/Unit-11/Grammarist_Aging_NoDate.pdf

[Kengne-yvana]

@IOhacker I only choosed "aging" over "ageing" because , the one with 'e' occurs less.
Thanks

[Kengne-yvana]

@IOhacker Please can you review my PR?
Thanks

[IOhacker]

LGTM