[Feature] Display program size of all imports

[mohammadfawaz]

Display program size of all imports. Example, we currently only print the program size of the primary program.

       Leo 🔨 Compiling 'parent.leo'
       Leo     4 statements before dead code elimination.
       Leo     4 statements after dead code elimination.
       Leo     The program checksum is: '[167u8, 156u8, 237u8, 201u8, 116u8, 83u8, 250u8, 38u8, 129u8, 210u8, 60u8, 95u8, 245u8, 200u8, 10u8, 21u8, 14u8, 3u8, 230u8, 145u8, 106u8, 235u8, 21u8, 146u8, 115u8, 92u8, 241u8, 22u8, 235u8, 234u8, 119u8, 58u8]'.
       Leo     Program size: 0.20 KB / 97.66 KB
       Leo ✅ Compiled 'parent.aleo' into Aleo instructions.
       Leo     Import 'child.aleo': checksum = '[13u8, 159u8, 189u8, 165u8, 153u8, 228u8, 68u8, 149u8, 32u8, 212u8, 198u8, 89u8, 84u8, 99u8, 168u8, 177u8, 75u8, 40u8, 177u8, 103u8, 64u8, 157u8, 149u8, 3u8, 244u8, 170u8, 16u8, 188u8, 1u8, 23u8, 203u8, 193u8]'
       Leo ✅ Generated ABI at 'build/abi.json'.