[Generation] Create configuration path constant and method generator(s)

[bohdan-harniuk]

Create a configuration path constant and method generators.
It should be implemented as two different generators.

Input:

• path to field (as for an ex.: b2b/general/enabled)
• scope info (showInDefault="1" showInWebsite="1" showInStore="1")
• flag if scope should be provided (?int $storeId = null)
• field type (\Magento\Framework\Data\Form\Element\Factory::$_standardTypes)

Output:

Generated constant that contains config path, as for an ex.:

private const XML_PATH_TAX_NOTIFICATION_IGNORE_DISCOUNT = 'tax/notification/ignore_discount';

Generated method, as for an example:

/**
     * Check if do not show notification about wrong discount settings.
     *
     * @param null|int $storeId
     * 
     * @return bool
     */
    public function isWrongDiscountSettingsIgnored(?int $storeId = null)
    {
        return $this->scopeConfig->isSetFlag(
            self::XML_PATH_TAX_NOTIFICATION_IGNORE_DISCOUNT,
            \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
            $storeId
        );
    }

Acceptance Criteria:

• this generation should be covered by test case.
• no actions should be created (will be done separately)
• consider implementing new architecture ways to create generators (try to not follow current one, maybe we can improve it)

Additional context

Mainline branch: mainline/generate-configuration-model

[m2-assistant]

Hi @bohdan-harniuk. Thank you for your report.
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Add a comment to assign the issue: @magento I am working on this

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