1) Add missing valueof() for template (value)
2) Remove duplicate group deviceSignatureHelpers

f_isPolygonalRegionInside (TODO)

Some logs shall be removed later
Variable initialization with null shall be removed. Used TTCN-3 isbound() function

f_waitForCertificateChain
f_askAndWaitForCertificateChain
f_isRectangularRegionsInside (TODO)

Add trailer_fields length in ToBeSignedSecuredMessage data structure as defined in Draft ETSI TS 103 097 V1.1.6 Clauses 7.1/2/3

f_verifyGnSecuredMessageSignatureWithCertificate (msg, cert)
f_verifyCertificateSignatureWithPublicKey (cert, key)
f_verifyCertificateSignatureWithIssuingCertificate (cert, cert)
f_HashedId8FromSha256
f_HashedId3FromHashedId8

f_verifyCertificateSignatureWithIssuingCertificate
f_verifyGnSecuredMessageWithPublicKey
f_verifyGnSecuredMessageWithDeviceCertificate

Add HeaderFields parameter in f_buildxxx functions

Add HeaderFields parameter in f_buildxxx functions

Update TA security message
Finalise support of secured other-message

Update TA security message

mw_at_certificate()

f_getCertificateSignerInfo
f_askForCertificateChain (TODO)

Adding test unit to build a encode/decode a secured beacon