Repository: typescript-eslint/tslint-to-eslint-config (ts)

Issue:
one-variable-per-declaration should output ruleArguments: ["never"]
# 🐛 Bug Report

-   `tslint-to-eslint-config` version: 0.2.9
-   ESLint version: 5.16.0
-   Node version: 12.X

#### Actual Behavior

`one-variable-per-declaration` outputs no rule arguments.

#### Expected Behavior

TSLint's `one-variable-per-declaration` is a subset of ESLint's `one-var`. `one-var` allows either style while `one-variable-per-declaration` only allows the `"never"` style.

#### Reproduction

`tslint.json`:
```json
{
    "rules": {
        "one-variable-per-declaration": true
    }
}
```

Pull request:
Added missing 'never' argument to one-var output
## PR Checklist

-   [x] Addresses an existing issue: fixes #256
-   [x] That issue was marked as [`status: accepting prs`](https://github.com/typescript-eslint/tslint-to-eslint-config/labels/status%3A%20accepting%20prs)

## Overview

Adds an ever-present `ruleArguments: ["never"]` to the `one-variable-per-declaration` converter.

Patch:
diff --git a/src/rules/converters/one-variable-per-declaration.ts b/src/rules/converters/one-variable-per-declaration.ts
index 75fdd7d..f018045 100644
--- a/src/rules/converters/one-variable-per-declaration.ts
+++ b/src/rules/converters/one-variable-per-declaration.ts
@@ -7,6 +7,7 @@ export const convertOneVariablePerDeclaration: RuleConverter = tslintRule => {
                 ...(!tslintRule.ruleArguments.includes("ignore-for-loop") && {
                     notices: ["Variables declared in for loops will no longer be checked."],
                 }),
+                ruleArguments: ["never"],
                 ruleName: "one-var",
             },
         ],


Test patch:
diff --git a/src/rules/converters/tests/one-variable-per-declaration.test.ts b/src/rules/converters/tests/one-variable-per-declaration.test.ts
index ced35ef..a2aaf0b 100644
--- a/src/rules/converters/tests/one-variable-per-declaration.test.ts
+++ b/src/rules/converters/tests/one-variable-per-declaration.test.ts
@@ -10,6 +10,7 @@ describe(convertOneVariablePerDeclaration, () => {
             rules: [
                 {
                     notices: ["Variables declared in for loops will no longer be checked."],
+                    ruleArguments: ["never"],
                     ruleName: "one-var",
                 },
             ],
@@ -24,6 +25,7 @@ describe(convertOneVariablePerDeclaration, () => {
         expect(result).toEqual({
             rules: [
                 {
+                    ruleArguments: ["never"],
                     ruleName: "one-var",
                 },
             ],