implement debug_traceTransaction and debug_traceCall

[libotony]

Debug namespace is not included in standard web3.js or ethers.js, need to be called directly at the provider side, below is some example:

/**
 * debug_traceTransaction(txHash, traceOptions)
 * traceOptions: {
 * 	tracer: '', // name of tracer or custom js tracer code
 * 	config: {}  // struct logger config object
 * 	tracerConfig: {} // tracer specific config object
 * }
 */
provider.request({
        method: 'debug_traceTransaction',
        params: [
	        '0x0050c856835d72c00974eb53fb249e261f31c4a4b1ca107e8fca8198f0fb7aa4',
	        {
		        tracer: 'call',
		        tracerConfig: {
			        onlyTopCall: true
		        }
	        }
        ]
})
/**
 * debug_traceTransaction(txHash, traceOptions)
 * traceOptions: {
 * 	tracer: '', // name of tracer or custom js tracer code
 * 	config: {}  // struct logger config object
 * 	tracerConfig: {} // tracer specific config object
 * }
 */
provider.request({
	method: 'debug_traceCall',
	params: [
		{
			from: '0xe87140bcf5dfafde63bdd3930285ffc1fc7578e4',
			to: '0x0000000000000000000000000000456e65726779',
			data: '0xa9059cbb000000000000000000000000bec38ea2338a4dafc246eb7eaf1b81e8a15d635400000000000000000000000000000000000000000000003635c9adc5dea00000'
		},
		'latest',
		{
			tracer: 'call',
			tracerConfig: {}
		}
	]
})

TraceCall test cases will be uncommented after thor releases the new version, this PR will bring down the code coverage.