Add Split Helper

[mikhail-vl]

Add split Helper similar to join:

Original {{bind}}

Split to Array: {{split bind ','}}

Each of Array:
{{#each (split bind ',')}}
 - {{this}}
{{/each}}

Resolves #129

[github-actions[bot]]

Levitate is-compatible report:

🔍 Resolving @grafana/data@latest... 🔍 Resolving @grafana/ui@latest... 🔍 Resolving @grafana/runtime@latest... 🔍 Resolving @grafana/schema@latest... 🔍 Resolving @grafana/e2e-selectors@latest... 🔍 Resolving @grafana/experimental@latest...

🔬 Checking compatibility between ./src/module.ts and @grafana/data@9.3.2... ✔ Found @grafana/data version 9.3.1 locally

🔬 Checking compatibility between ./src/module.ts and @grafana/ui@9.3.2... ✔ Found @grafana/ui version 9.3.1 locally

🔬 Checking compatibility between ./src/module.ts and @grafana/runtime@9.3.2... ✔ Found @grafana/runtime version 9.3.1 locally

🔬 Checking compatibility between ./src/module.ts and @grafana/schema@9.3.2... Skipping package @grafana/schema because it is not used in the project or not installed locally. did you forget to run yarn install or npm install?

🔬 Checking compatibility between ./src/module.ts and @grafana/e2e-selectors@9.3.2... Skipping package @grafana/e2e-selectors because it is not used in the project or not installed locally. did you forget to run yarn install or npm install?

🔬 Checking compatibility between ./src/module.ts and @grafana/experimental@1.0.2... Skipping package @grafana/experimental because it is not used in the project or not installed locally. did you forget to run yarn install or npm install?

✔️ ./src/module.ts appears to be compatible with @grafana/data,@grafana/ui,@grafana/runtime,@grafana/schema,@grafana/e2e-selectors,@grafana/experimental