Function to supports RSA encryption

[ehsandeep]

From https://github.com/projectdiscovery/nuclei-templates/discussions/7493

I encountered a vulnerability in the system, which uses rsa encryption to encrypt the parameters during the login phase. During the vulnerability mining process, I already knew the public key used for encryption, but when I wrote the nuclei template, I couldn't find the calculation function related to rsa encryption. Is there any way i can implement this encryption process through the nuclei template The encryption process is implemented using JSEncrypt，and encryption scheme is RSAES-PKCS1-V1_5