feat(conversion): use snake case instead of camel case

BREAKING CHANGE: Generate types and variable names in snake case instead of camel case

package.json

@@ -44,7 +44,7 @@
   "dependencies": {
     "chalk": "^3.0.0",
     "commander": "^4.0.1",
-    "lodash.camelcase": "^4.3.0",
+    "lodash.snakecase": "^4.1.1",
     "prettier": "^1.19.1",
     "svgo": "^1.3.2"
   },

src/lib/convert.ts

@@ -1,6 +1,6 @@
 import { svgo } from './svgo';
 import { getInterfaceDefinition, getSvgConstant, getTypeDefinition } from './definitions';
-import camelCase from 'lodash.camelcase';
+import snakeCase from 'lodash.snakecase';
 import * as prettier from 'prettier/standalone';
 import chalk from 'chalk';
 import typescriptParser from 'prettier/parser-typescript';
@@ -31,7 +31,7 @@ export const convert = async (convertionOptions: ConvertionOptions): Promise<voi
     const files = await readdir(directoryPath);
     for (let i = 0; i < files.length; i++) {
       const fileNameWithEnding = files[i];
-      const filenameWithoutEnding = fileNameWithEnding.split('.')[0];
+      const filenameWithoutEnding = snakeCase(fileNameWithEnding.split('.')[0]);
       const rawSvg = await extractSvgContent(fileNameWithEnding, directoryPath);
       const optimizedSvg = await svgo.optimize(rawSvg);
       const variableName = getVariableName(convertionOptions, filenameWithoutEnding);
@@ -75,7 +75,7 @@ const writeIconsFile = async (convertionOptions: ConvertionOptions, fileContent:
 };
 
 const getVariableName = (convertionOptions: ConvertionOptions, filenameWithoutEnding): string => {
-  return `${convertionOptions.prefix}${capitalize(camelCase(filenameWithoutEnding))}`;
+  return `${convertionOptions.prefix}${capitalize(filenameWithoutEnding)}`;
 };
 
 const extractSvgContent = async (fileName: string, directoryPath: string): Promise<string> => {

src/lib/definitions.ts

@@ -1,5 +1,3 @@
-import { ConvertionOptions } from './convert';
-
 export const getInterfaceDefinition = (interfaceName: string, typeName: string) => {
   return `export interface ${interfaceName}{
         name: ${typeName};